346 files changed, 1068 insertions, 570 deletions
diff --git a/examples/boot/application/nrf/Cargo.toml b/examples/boot/application/nrf/Cargo.toml
index 5f11750b2..b52bac650 100644
--- a/examples/boot/application/nrf/Cargo.toml
+++ b/examples/boot/application/nrf/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers", "arch-cortex-m", "executor-thread"] }
+embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "integrated-timers", "arch-cortex-m", "executor-thread"] }
 embassy-time = { version = "0.2", path = "../../../../embassy-time", features = [] }
 embassy-nrf = { version = "0.1.0", path = "../../../../embassy-nrf", features = ["time-driver-rtc1", "gpiote", ] }
 embassy-boot = { version = "0.1.0", path = "../../../../embassy-boot/boot", features = [] }
diff --git a/examples/boot/application/nrf/src/bin/a.rs b/examples/boot/application/nrf/src/bin/a.rs
index 8b510ed35..f3abfddbc 100644
--- a/examples/boot/application/nrf/src/bin/a.rs
+++ b/examples/boot/application/nrf/src/bin/a.rs
@@ -1,7 +1,6 @@
 #![no_std]
 #![no_main]
 #![macro_use]
-#![feature(type_alias_impl_trait)]
 use embassy_boot_nrf::{FirmwareUpdater, FirmwareUpdaterConfig};
 use embassy_embedded_hal::adapter::BlockingAsync;
diff --git a/examples/boot/application/nrf/src/bin/b.rs b/examples/boot/application/nrf/src/bin/b.rs
index a88c3c56c..de97b6a22 100644
--- a/examples/boot/application/nrf/src/bin/b.rs
+++ b/examples/boot/application/nrf/src/bin/b.rs
@@ -1,7 +1,6 @@
 #![no_std]
 #![no_main]
 #![macro_use]
-#![feature(type_alias_impl_trait)]
 use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Level, Output, OutputDrive};
diff --git a/examples/boot/application/rp/Cargo.toml b/examples/boot/application/rp/Cargo.toml
index 89ac5a8f6..08ce16877 100644
--- a/examples/boot/application/rp/Cargo.toml
+++ b/examples/boot/application/rp/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers", "arch-cortex-m", "executor-thread"] }
+embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "integrated-timers", "arch-cortex-m", "executor-thread"] }
 embassy-time = { version = "0.2", path = "../../../../embassy-time", features = [] }
 embassy-rp = { version = "0.1.0", path = "../../../../embassy-rp", features = ["time-driver", ] }
 embassy-boot-rp = { version = "0.1.0", path = "../../../../embassy-boot/rp", features = [] }
diff --git a/examples/boot/application/rp/src/bin/a.rs b/examples/boot/application/rp/src/bin/a.rs
index 6fd5d7f60..3f0bf90e2 100644
--- a/examples/boot/application/rp/src/bin/a.rs
+++ b/examples/boot/application/rp/src/bin/a.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::cell::RefCell;
diff --git a/examples/boot/application/rp/src/bin/b.rs b/examples/boot/application/rp/src/bin/b.rs
index 1eca5b4a2..a46d095bf 100644
--- a/examples/boot/application/rp/src/bin/b.rs
+++ b/examples/boot/application/rp/src/bin/b.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use embassy_executor::Spawner;
 use embassy_rp::gpio;
diff --git a/examples/boot/application/stm32f3/Cargo.toml b/examples/boot/application/stm32f3/Cargo.toml
index 1a0f8cee5..248ec6dce 100644
--- a/examples/boot/application/stm32f3/Cargo.toml
+++ b/examples/boot/application/stm32f3/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../../../embassy-time", features = [ "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["stm32f303re", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32" }
diff --git a/examples/boot/application/stm32f3/src/bin/a.rs b/examples/boot/application/stm32f3/src/bin/a.rs
index 8be39bfb7..96ae5c47b 100644
--- a/examples/boot/application/stm32f3/src/bin/a.rs
+++ b/examples/boot/application/stm32f3/src/bin/a.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/application/stm32f3/src/bin/b.rs b/examples/boot/application/stm32f3/src/bin/b.rs
index 8411f384c..22ba82d5e 100644
--- a/examples/boot/application/stm32f3/src/bin/b.rs
+++ b/examples/boot/application/stm32f3/src/bin/b.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/application/stm32f7/Cargo.toml b/examples/boot/application/stm32f7/Cargo.toml
index e42d1d421..aa5f87615 100644
--- a/examples/boot/application/stm32f7/Cargo.toml
+++ b/examples/boot/application/stm32f7/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../../../embassy-time", features = [ "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["stm32f767zi", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32", features = [] }
diff --git a/examples/boot/application/stm32f7/src/bin/a.rs b/examples/boot/application/stm32f7/src/bin/a.rs
index 0c3819bed..a6107386a 100644
--- a/examples/boot/application/stm32f7/src/bin/a.rs
+++ b/examples/boot/application/stm32f7/src/bin/a.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::cell::RefCell;
diff --git a/examples/boot/application/stm32f7/src/bin/b.rs b/examples/boot/application/stm32f7/src/bin/b.rs
index 4c2ad06a2..190477204 100644
--- a/examples/boot/application/stm32f7/src/bin/b.rs
+++ b/examples/boot/application/stm32f7/src/bin/b.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/application/stm32h7/Cargo.toml b/examples/boot/application/stm32h7/Cargo.toml
index 8450d8639..78e33de28 100644
--- a/examples/boot/application/stm32h7/Cargo.toml
+++ b/examples/boot/application/stm32h7/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../../../embassy-time", features = [ "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["stm32h743zi", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32", features = [] }
diff --git a/examples/boot/application/stm32h7/src/bin/a.rs b/examples/boot/application/stm32h7/src/bin/a.rs
index f239e3732..b73506cf3 100644
--- a/examples/boot/application/stm32h7/src/bin/a.rs
+++ b/examples/boot/application/stm32h7/src/bin/a.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::cell::RefCell;
diff --git a/examples/boot/application/stm32h7/src/bin/b.rs b/examples/boot/application/stm32h7/src/bin/b.rs
index 5c03e2d0c..5f3f35207 100644
--- a/examples/boot/application/stm32h7/src/bin/b.rs
+++ b/examples/boot/application/stm32h7/src/bin/b.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/application/stm32l0/Cargo.toml b/examples/boot/application/stm32l0/Cargo.toml
index d6684bedb..240afe4c6 100644
--- a/examples/boot/application/stm32l0/Cargo.toml
+++ b/examples/boot/application/stm32l0/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../../../embassy-time", features = [ "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["stm32l072cz", "time-driver-any", "exti", "memory-x"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32", features = [] }
diff --git a/examples/boot/application/stm32l0/src/bin/a.rs b/examples/boot/application/stm32l0/src/bin/a.rs
index 42e1a71eb..02f74bdef 100644
--- a/examples/boot/application/stm32l0/src/bin/a.rs
+++ b/examples/boot/application/stm32l0/src/bin/a.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/application/stm32l0/src/bin/b.rs b/examples/boot/application/stm32l0/src/bin/b.rs
index 52d42395f..6bf00f41a 100644
--- a/examples/boot/application/stm32l0/src/bin/b.rs
+++ b/examples/boot/application/stm32l0/src/bin/b.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/application/stm32l1/Cargo.toml b/examples/boot/application/stm32l1/Cargo.toml
index cca8bf443..97f1e277b 100644
--- a/examples/boot/application/stm32l1/Cargo.toml
+++ b/examples/boot/application/stm32l1/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../../../embassy-time", features = [ "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["stm32l151cb-a", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32", features = [] }
diff --git a/examples/boot/application/stm32l1/src/bin/a.rs b/examples/boot/application/stm32l1/src/bin/a.rs
index 42e1a71eb..02f74bdef 100644
--- a/examples/boot/application/stm32l1/src/bin/a.rs
+++ b/examples/boot/application/stm32l1/src/bin/a.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/application/stm32l1/src/bin/b.rs b/examples/boot/application/stm32l1/src/bin/b.rs
index 52d42395f..6bf00f41a 100644
--- a/examples/boot/application/stm32l1/src/bin/b.rs
+++ b/examples/boot/application/stm32l1/src/bin/b.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/application/stm32l4/Cargo.toml b/examples/boot/application/stm32l4/Cargo.toml
index 30d61056c..0c3830f97 100644
--- a/examples/boot/application/stm32l4/Cargo.toml
+++ b/examples/boot/application/stm32l4/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../../../embassy-time", features = [ "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["stm32l475vg", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32", features = [] }
diff --git a/examples/boot/application/stm32l4/src/bin/a.rs b/examples/boot/application/stm32l4/src/bin/a.rs
index eefa25f75..892446968 100644
--- a/examples/boot/application/stm32l4/src/bin/a.rs
+++ b/examples/boot/application/stm32l4/src/bin/a.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/application/stm32l4/src/bin/b.rs b/examples/boot/application/stm32l4/src/bin/b.rs
index 8411f384c..22ba82d5e 100644
--- a/examples/boot/application/stm32l4/src/bin/b.rs
+++ b/examples/boot/application/stm32l4/src/bin/b.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/application/stm32wb-dfu/.cargo/config.toml b/examples/boot/application/stm32wb-dfu/.cargo/config.toml
new file mode 100644
index 000000000..4f8094ff2
--- /dev/null
+++ b/examples/boot/application/stm32wb-dfu/.cargo/config.toml
@@ -0,0 +1,9 @@
+[target.'cfg(all(target_arch = "arm", target_os = "none"))']
+# replace your chip as listed in `probe-rs chip list`
+runner = "probe-rs run --chip STM32WLE5JCIx"
+[build]
+target = "thumbv7em-none-eabihf"
+[env]
+DEFMT_LOG = "trace"
diff --git a/examples/boot/application/stm32wb-dfu/Cargo.toml b/examples/boot/application/stm32wb-dfu/Cargo.toml
new file mode 100644
index 000000000..cdaee802e
--- /dev/null
+++ b/examples/boot/application/stm32wb-dfu/Cargo.toml
@@ -0,0 +1,32 @@
+[package]
+edition = "2021"
+name = "embassy-boot-stm32wb-dfu-examples"
+version = "0.1.0"
+license = "MIT OR Apache-2.0"
+[dependencies]
+embassy-sync = { version = "0.5.0", path = "../../../../embassy-sync" }
+embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "integrated-timers"] }
+embassy-time = { version = "0.2", path = "../../../../embassy-time", features = [ "tick-hz-32_768"] }
+embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["stm32wb55rg", "time-driver-any", "exti"]  }
+embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32", features = [] }
+embassy-embedded-hal = { version = "0.1.0", path = "../../../../embassy-embedded-hal" }
+embassy-usb = { version = "0.1.0", path = "../../../../embassy-usb" }
+embassy-usb-dfu = { version = "0.1.0", path = "../../../../embassy-usb-dfu", features = ["application", "cortex-m"] }
+defmt = { version = "0.3", optional = true }
+defmt-rtt = { version = "0.4", optional = true }
+panic-reset = { version = "0.1.1" }
+embedded-hal = { version = "0.2.6" }
+cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
+cortex-m-rt = "0.7.0"
+[features]
+defmt = [
+      "dep:defmt",
+      "dep:defmt-rtt",
+      "embassy-stm32/defmt",
+      "embassy-boot-stm32/defmt",
+      "embassy-sync/defmt",
+]
diff --git a/examples/boot/application/stm32wb-dfu/README.md b/examples/boot/application/stm32wb-dfu/README.md
new file mode 100644
index 000000000..c8dce0387
--- /dev/null
+++ b/examples/boot/application/stm32wb-dfu/README.md
@@ -0,0 +1,29 @@
+# Examples using bootloader
+Example for STM32WL demonstrating the bootloader. The example consists of application binaries, 'a'
+which allows you to press a button to start the DFU process, and 'b' which is the updated
+application.
+## Prerequisites
+* `cargo-binutils`
+* `cargo-flash`
+* `embassy-boot-stm32`
+## Usage
+```
+# Flash bootloader
+cargo flash --manifest-path ../../bootloader/stm32/Cargo.toml --release --features embassy-stm32/stm32wl55jc-cm4 --chip STM32WLE5JCIx
+# Build 'b'
+cargo build --release --bin b
+# Generate binary for 'b'
+cargo objcopy --release --bin b -- -O binary b.bin
+```
+# Flash `a` (which includes b.bin)
+```
+cargo flash --release --bin a --chip STM32WLE5JCIx
+```
diff --git a/examples/boot/application/stm32wb-dfu/build.rs b/examples/boot/application/stm32wb-dfu/build.rs
new file mode 100644
index 000000000..e1da69328
--- /dev/null
+++ b/examples/boot/application/stm32wb-dfu/build.rs
@@ -0,0 +1,37 @@
+//! This build script copies the `memory.x` file from the crate root into
+//! a directory where the linker can always find it at build time.
+//! For many projects this is optional, as the linker always searches the
+//! project root directory -- wherever `Cargo.toml` is. However, if you
+//! are using a workspace or have a more complicated build setup, this
+//! build script becomes required. Additionally, by requesting that
+//! Cargo re-run the build script whenever `memory.x` is changed,
+//! updating `memory.x` ensures a rebuild of the application with the
+//! new memory settings.
+use std::env;
+use std::fs::File;
+use std::io::Write;
+use std::path::PathBuf;
+fn main() {
+    // Put `memory.x` in our output directory and ensure it's
+    // on the linker search path.
+    let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
+    File::create(out.join("memory.x"))
+        .unwrap()
+        .write_all(include_bytes!("memory.x"))
+        .unwrap();
+    println!("cargo:rustc-link-search={}", out.display());
+    // By default, Cargo will re-run a build script whenever
+    // any file in the project changes. By specifying `memory.x`
+    // here, we ensure the build script is only re-run when
+    // `memory.x` is changed.
+    println!("cargo:rerun-if-changed=memory.x");
+    println!("cargo:rustc-link-arg-bins=--nmagic");
+    println!("cargo:rustc-link-arg-bins=-Tlink.x");
+    if env::var("CARGO_FEATURE_DEFMT").is_ok() {
+        println!("cargo:rustc-link-arg-bins=-Tdefmt.x");
+    }
+}
diff --git a/examples/boot/application/stm32wb-dfu/memory.x b/examples/boot/application/stm32wb-dfu/memory.x
new file mode 100644
index 000000000..ff1b800d2
--- /dev/null
+++ b/examples/boot/application/stm32wb-dfu/memory.x
@@ -0,0 +1,15 @@
+MEMORY
+{
+  /* NOTE 1 K = 1 KiBi = 1024 bytes */
+  BOOTLOADER                        : ORIGIN = 0x08000000, LENGTH = 24K
+  BOOTLOADER_STATE                  : ORIGIN = 0x08006000, LENGTH = 4K
+  FLASH                             : ORIGIN = 0x08008000, LENGTH = 128K
+  DFU                               : ORIGIN = 0x08028000, LENGTH = 132K
+  RAM                         (rwx) : ORIGIN = 0x20000000, LENGTH = 32K
+}
+__bootloader_state_start = ORIGIN(BOOTLOADER_STATE) - ORIGIN(BOOTLOADER);
+__bootloader_state_end = ORIGIN(BOOTLOADER_STATE) + LENGTH(BOOTLOADER_STATE) - ORIGIN(BOOTLOADER);
+__bootloader_dfu_start = ORIGIN(DFU) - ORIGIN(BOOTLOADER);
+__bootloader_dfu_end = ORIGIN(DFU) + LENGTH(DFU) - ORIGIN(BOOTLOADER);
diff --git a/examples/boot/application/stm32wb-dfu/src/main.rs b/examples/boot/application/stm32wb-dfu/src/main.rs
new file mode 100644
index 000000000..b2ccb9e1a
--- /dev/null
+++ b/examples/boot/application/stm32wb-dfu/src/main.rs
@@ -0,0 +1,63 @@
+#![no_std]
+#![no_main]
+use core::cell::RefCell;
+#[cfg(feature = "defmt-rtt")]
+use defmt_rtt::*;
+use embassy_boot_stm32::{AlignedBuffer, BlockingFirmwareState, FirmwareUpdaterConfig};
+use embassy_executor::Spawner;
+use embassy_stm32::flash::{Flash, WRITE_SIZE};
+use embassy_stm32::rcc::WPAN_DEFAULT;
+use embassy_stm32::usb::{self, Driver};
+use embassy_stm32::{bind_interrupts, peripherals};
+use embassy_sync::blocking_mutex::Mutex;
+use embassy_time::Duration;
+use embassy_usb::Builder;
+use embassy_usb_dfu::consts::DfuAttributes;
+use embassy_usb_dfu::{usb_dfu, Control, ResetImmediate};
+use panic_reset as _;
+bind_interrupts!(struct Irqs {
+    USB_LP => usb::InterruptHandler<peripherals::USB>;
+});
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let mut config = embassy_stm32::Config::default();
+    config.rcc = WPAN_DEFAULT;
+    let p = embassy_stm32::init(config);
+    let flash = Flash::new_blocking(p.FLASH);
+    let flash = Mutex::new(RefCell::new(flash));
+    let config = FirmwareUpdaterConfig::from_linkerfile_blocking(&flash);
+    let mut magic = AlignedBuffer([0; WRITE_SIZE]);
+    let mut firmware_state = BlockingFirmwareState::from_config(config, &mut magic.0);
+    firmware_state.mark_booted().expect("Failed to mark booted");
+    let driver = Driver::new(p.USB, Irqs, p.PA12, p.PA11);
+    let mut config = embassy_usb::Config::new(0xc0de, 0xcafe);
+    config.manufacturer = Some("Embassy");
+    config.product = Some("USB-DFU Runtime example");
+    config.serial_number = Some("1235678");
+    let mut device_descriptor = [0; 256];
+    let mut config_descriptor = [0; 256];
+    let mut bos_descriptor = [0; 256];
+    let mut control_buf = [0; 64];
+    let mut state = Control::new(firmware_state, DfuAttributes::CAN_DOWNLOAD);
+    let mut builder = Builder::new(
+        driver,
+        config,
+        &mut device_descriptor,
+        &mut config_descriptor,
+        &mut bos_descriptor,
+        &mut [],
+        &mut control_buf,
+    );
+    usb_dfu::<_, _, ResetImmediate>(&mut builder, &mut state, Duration::from_millis(2500));
+    let mut dev = builder.build();
+    dev.run().await
+}
diff --git a/examples/boot/application/stm32wl/Cargo.toml b/examples/boot/application/stm32wl/Cargo.toml
index 7489a2fe9..b5677e148 100644
--- a/examples/boot/application/stm32wl/Cargo.toml
+++ b/examples/boot/application/stm32wl/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../../../embassy-sync" }
-embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../../../embassy-time", features = [ "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../../../embassy-stm32", features = ["stm32wl55jc-cm4", "time-driver-any", "exti"]  }
 embassy-boot-stm32 = { version = "0.1.0", path = "../../../../embassy-boot/stm32", features = [] }
diff --git a/examples/boot/application/stm32wl/src/bin/a.rs b/examples/boot/application/stm32wl/src/bin/a.rs
index c837e47b5..d9665e6ee 100644
--- a/examples/boot/application/stm32wl/src/bin/a.rs
+++ b/examples/boot/application/stm32wl/src/bin/a.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/application/stm32wl/src/bin/b.rs b/examples/boot/application/stm32wl/src/bin/b.rs
index 1ca3c6ea8..8dd15d8cd 100644
--- a/examples/boot/application/stm32wl/src/bin/b.rs
+++ b/examples/boot/application/stm32wl/src/bin/b.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #[cfg(feature = "defmt-rtt")]
 use defmt_rtt::*;
diff --git a/examples/boot/bootloader/stm32wb-dfu/Cargo.toml b/examples/boot/bootloader/stm32wb-dfu/Cargo.toml
new file mode 100644
index 000000000..ada073970
--- /dev/null
+++ b/examples/boot/bootloader/stm32wb-dfu/Cargo.toml
@@ -0,0 +1,63 @@
+[package]
+edition = "2021"
+name = "stm32wb-dfu-bootloader-example"
+version = "0.1.0"
+description = "Example USB DFUbootloader for the STM32WB series of chips"
+license = "MIT OR Apache-2.0"
+[dependencies]
+defmt = { version = "0.3", optional = true }
+defmt-rtt = { version = "0.4", optional = true }
+embassy-stm32 = { path = "../../../../embassy-stm32", features = ["stm32wb55rg"] }
+embassy-boot-stm32 = { path = "../../../../embassy-boot/stm32" }
+cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
+embassy-sync = { version = "0.5.0", path = "../../../../embassy-sync" }
+cortex-m-rt = { version = "0.7" }
+embedded-storage = "0.3.1"
+embedded-storage-async = "0.4.0"
+cfg-if = "1.0.0"
+embassy-usb-dfu = { version = "0.1.0", path = "../../../../embassy-usb-dfu", features = ["dfu", "cortex-m"] }
+embassy-usb = { version = "0.1.0", path = "../../../../embassy-usb", default-features = false }
+embassy-futures = { version = "0.1.1", path = "../../../../embassy-futures" }
+[features]
+defmt = [
+    "dep:defmt",
+    "embassy-boot-stm32/defmt",
+    "embassy-stm32/defmt",
+    "embassy-usb/defmt",
+    "embassy-usb-dfu/defmt"
+]
+debug = ["defmt-rtt", "defmt"]
+[profile.dev]
+debug = 2
+debug-assertions = true
+incremental = false
+opt-level = 'z'
+overflow-checks = true
+[profile.release]
+codegen-units = 1
+debug = 2
+debug-assertions = false
+incremental = false
+lto = 'fat'
+opt-level = 'z'
+overflow-checks = false
+# do not optimize proc-macro crates = faster builds from scratch
+[profile.dev.build-override]
+codegen-units = 8
+debug = false
+debug-assertions = false
+opt-level = 0
+overflow-checks = false
+[profile.release.build-override]
+codegen-units = 8
+debug = false
+debug-assertions = false
+opt-level = 0
+overflow-checks = false
diff --git a/examples/boot/bootloader/stm32wb-dfu/README.md b/examples/boot/bootloader/stm32wb-dfu/README.md
new file mode 100644
index 000000000..a82b730b9
--- /dev/null
+++ b/examples/boot/bootloader/stm32wb-dfu/README.md
@@ -0,0 +1,11 @@
+# Bootloader for STM32
+The bootloader uses `embassy-boot` to interact with the flash.
+# Usage
+Flash the bootloader
+```
+cargo flash --features embassy-stm32/stm32wl55jc-cm4 --release --chip STM32WLE5JCIx
+```
diff --git a/examples/boot/bootloader/stm32wb-dfu/build.rs b/examples/boot/bootloader/stm32wb-dfu/build.rs
new file mode 100644
index 000000000..fd605991f
--- /dev/null
+++ b/examples/boot/bootloader/stm32wb-dfu/build.rs
@@ -0,0 +1,27 @@
+use std::env;
+use std::fs::File;
+use std::io::Write;
+use std::path::PathBuf;
+fn main() {
+    // Put `memory.x` in our output directory and ensure it's
+    // on the linker search path.
+    let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
+    File::create(out.join("memory.x"))
+        .unwrap()
+        .write_all(include_bytes!("memory.x"))
+        .unwrap();
+    println!("cargo:rustc-link-search={}", out.display());
+    // By default, Cargo will re-run a build script whenever
+    // any file in the project changes. By specifying `memory.x`
+    // here, we ensure the build script is only re-run when
+    // `memory.x` is changed.
+    println!("cargo:rerun-if-changed=memory.x");
+    println!("cargo:rustc-link-arg-bins=--nmagic");
+    println!("cargo:rustc-link-arg-bins=-Tlink.x");
+    if env::var("CARGO_FEATURE_DEFMT").is_ok() {
+        println!("cargo:rustc-link-arg-bins=-Tdefmt.x");
+    }
+}
diff --git a/examples/boot/bootloader/stm32wb-dfu/memory.x b/examples/boot/bootloader/stm32wb-dfu/memory.x
new file mode 100644
index 000000000..858062631
--- /dev/null
+++ b/examples/boot/bootloader/stm32wb-dfu/memory.x
@@ -0,0 +1,18 @@
+MEMORY
+{
+  /* NOTE 1 K = 1 KiBi = 1024 bytes */
+  FLASH                             : ORIGIN = 0x08000000, LENGTH = 24K
+  BOOTLOADER_STATE                  : ORIGIN = 0x08006000, LENGTH = 4K
+  ACTIVE                            : ORIGIN = 0x08008000, LENGTH = 128K
+  DFU                               : ORIGIN = 0x08028000, LENGTH = 132K
+  RAM                         (rwx) : ORIGIN = 0x20000000, LENGTH = 16K
+}
+__bootloader_state_start = ORIGIN(BOOTLOADER_STATE) - ORIGIN(FLASH);
+__bootloader_state_end = ORIGIN(BOOTLOADER_STATE) + LENGTH(BOOTLOADER_STATE) - ORIGIN(FLASH);
+__bootloader_active_start = ORIGIN(ACTIVE) - ORIGIN(FLASH);
+__bootloader_active_end = ORIGIN(ACTIVE) + LENGTH(ACTIVE) - ORIGIN(FLASH);
+__bootloader_dfu_start = ORIGIN(DFU) - ORIGIN(FLASH);
+__bootloader_dfu_end = ORIGIN(DFU) + LENGTH(DFU) - ORIGIN(FLASH);
diff --git a/examples/boot/bootloader/stm32wb-dfu/src/main.rs b/examples/boot/bootloader/stm32wb-dfu/src/main.rs
new file mode 100644
index 000000000..a7ab813b6
--- /dev/null
+++ b/examples/boot/bootloader/stm32wb-dfu/src/main.rs
@@ -0,0 +1,93 @@
+#![no_std]
+#![no_main]
+use core::cell::RefCell;
+use cortex_m_rt::{entry, exception};
+#[cfg(feature = "defmt")]
+use defmt_rtt as _;
+use embassy_boot_stm32::*;
+use embassy_stm32::flash::{Flash, BANK1_REGION, WRITE_SIZE};
+use embassy_stm32::rcc::WPAN_DEFAULT;
+use embassy_stm32::usb::Driver;
+use embassy_stm32::{bind_interrupts, peripherals, usb};
+use embassy_sync::blocking_mutex::Mutex;
+use embassy_usb::Builder;
+use embassy_usb_dfu::consts::DfuAttributes;
+use embassy_usb_dfu::{usb_dfu, Control, ResetImmediate};
+bind_interrupts!(struct Irqs {
+    USB_LP => usb::InterruptHandler<peripherals::USB>;
+});
+#[entry]
+fn main() -> ! {
+    let mut config = embassy_stm32::Config::default();
+    config.rcc = WPAN_DEFAULT;
+    let p = embassy_stm32::init(config);
+    // Prevent a hard fault when accessing flash 'too early' after boot.
+    #[cfg(feature = "defmt")]
+    for _ in 0..10000000 {
+        cortex_m::asm::nop();
+    }
+    let layout = Flash::new_blocking(p.FLASH).into_blocking_regions();
+    let flash = Mutex::new(RefCell::new(layout.bank1_region));
+    let config = BootLoaderConfig::from_linkerfile_blocking(&flash);
+    let active_offset = config.active.offset();
+    let bl = BootLoader::prepare::<_, _, _, 2048>(config);
+    if bl.state == State::DfuDetach {
+        let driver = Driver::new(p.USB, Irqs, p.PA12, p.PA11);
+        let mut config = embassy_usb::Config::new(0xc0de, 0xcafe);
+        config.manufacturer = Some("Embassy");
+        config.product = Some("USB-DFU Bootloader example");
+        config.serial_number = Some("1235678");
+        let fw_config = FirmwareUpdaterConfig::from_linkerfile_blocking(&flash);
+        let mut buffer = AlignedBuffer([0; WRITE_SIZE]);
+        let updater = BlockingFirmwareUpdater::new(fw_config, &mut buffer.0[..]);
+        let mut device_descriptor = [0; 256];
+        let mut config_descriptor = [0; 256];
+        let mut bos_descriptor = [0; 256];
+        let mut control_buf = [0; 4096];
+        let mut state = Control::new(updater, DfuAttributes::CAN_DOWNLOAD);
+        let mut builder = Builder::new(
+            driver,
+            config,
+            &mut device_descriptor,
+            &mut config_descriptor,
+            &mut bos_descriptor,
+            &mut [],
+            &mut control_buf,
+        );
+        usb_dfu::<_, _, _, ResetImmediate, 4096>(&mut builder, &mut state);
+        let mut dev = builder.build();
+        embassy_futures::block_on(dev.run());
+    }
+    unsafe { bl.load(BANK1_REGION.base + active_offset) }
+}
+#[no_mangle]
+#[cfg_attr(target_os = "none", link_section = ".HardFault.user")]
+unsafe extern "C" fn HardFault() {
+    cortex_m::peripheral::SCB::sys_reset();
+}
+#[exception]
+unsafe fn DefaultHandler(_: i16) -> ! {
+    const SCB_ICSR: *const u32 = 0xE000_ED04 as *const u32;
+    let irqn = core::ptr::read_volatile(SCB_ICSR) as u8 as i16 - 16;
+    panic!("DefaultHandler #{:?}", irqn);
+}
+#[panic_handler]
+fn panic(_info: &core::panic::PanicInfo) -> ! {
+    cortex_m::asm::udf();
+}
diff --git a/examples/nrf-rtos-trace/src/bin/rtos_trace.rs b/examples/nrf-rtos-trace/src/bin/rtos_trace.rs
index 888375693..41cc06417 100644
--- a/examples/nrf-rtos-trace/src/bin/rtos_trace.rs
+++ b/examples/nrf-rtos-trace/src/bin/rtos_trace.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::future::poll_fn;
 use core::task::Poll;
diff --git a/examples/nrf52840/Cargo.toml b/examples/nrf52840/Cargo.toml
index 65cd631f8..bc8a7f2d6 100644
--- a/examples/nrf52840/Cargo.toml
+++ b/examples/nrf52840/Cargo.toml
@@ -4,12 +4,6 @@ name = "embassy-nrf52840-examples"
 version = "0.1.0"
 license = "MIT OR Apache-2.0"
-[features]
-default = ["nightly"]
-nightly = [
-    "static_cell/nightly",
-]
 [dependencies]
 embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
@@ -36,9 +30,9 @@ rand = { version = "0.8.4", default-features = false }
 embedded-storage = "0.3.1"
 usbd-hid = "0.6.0"
 serde = { version = "1.0.136", default-features = false }
-embedded-hal = { version = "1.0.0-rc.2" }
+embedded-hal = { version = "1.0.0-rc.3" }
-embedded-hal-async = { version = "1.0.0-rc.2" }
+embedded-hal-async = { version = "1.0.0-rc.3" }
-embedded-hal-bus = { version = "0.1.0-rc.2", features = ["async"] }
+embedded-hal-bus = { version = "0.1.0-rc.3", features = ["async"] }
 num-integer = { version = "0.1.45", default-features = false }
 microfft = "0.5.0"
diff --git a/examples/nrf52840/src/bin/blinky.rs b/examples/nrf52840/src/bin/blinky.rs
index d3d1a7122..58a3d2cd9 100644
--- a/examples/nrf52840/src/bin/blinky.rs
+++ b/examples/nrf52840/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Level, Output, OutputDrive};
diff --git a/examples/nrf52840/src/bin/buffered_uart.rs b/examples/nrf52840/src/bin/buffered_uart.rs
index d9c505786..6ac72bcaf 100644
--- a/examples/nrf52840/src/bin/buffered_uart.rs
+++ b/examples/nrf52840/src/bin/buffered_uart.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/channel.rs b/examples/nrf52840/src/bin/channel.rs
index d3c7b47d2..7fcea9dbd 100644
--- a/examples/nrf52840/src/bin/channel.rs
+++ b/examples/nrf52840/src/bin/channel.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::unwrap;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/channel_sender_receiver.rs b/examples/nrf52840/src/bin/channel_sender_receiver.rs
index 79d2c4048..3095a04ec 100644
--- a/examples/nrf52840/src/bin/channel_sender_receiver.rs
+++ b/examples/nrf52840/src/bin/channel_sender_receiver.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::unwrap;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/ethernet_enc28j60.rs b/examples/nrf52840/src/bin/ethernet_enc28j60.rs
index d1b796fab..a8e64b38a 100644
--- a/examples/nrf52840/src/bin/ethernet_enc28j60.rs
+++ b/examples/nrf52840/src/bin/ethernet_enc28j60.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -14,7 +13,7 @@ use embassy_nrf::{bind_interrupts, peripherals, spim};
 use embassy_time::Delay;
 use embedded_hal_bus::spi::ExclusiveDevice;
 use embedded_io_async::Write;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -70,11 +69,20 @@ async fn main(spawner: Spawner) {
    let seed = u64::from_le_bytes(seed);
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    static STACK: StaticCell<
+        Stack<
+            Enc28j60<
+                ExclusiveDevice<Spim<'static, peripherals::SPI3>, Output<'static, peripherals::P0_15>, Delay>,
+                Output<'static, peripherals::P0_13>,
+            >,
+        >,
+    > = StaticCell::new();
+    let stack = STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    unwrap!(spawner.spawn(net_task(stack)));
diff --git a/examples/nrf52840/src/bin/executor_fairness_test.rs b/examples/nrf52840/src/bin/executor_fairness_test.rs
index f111b272e..df6e7af3f 100644
--- a/examples/nrf52840/src/bin/executor_fairness_test.rs
+++ b/examples/nrf52840/src/bin/executor_fairness_test.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::future::poll_fn;
 use core::task::Poll;
diff --git a/examples/nrf52840/src/bin/gpiote_channel.rs b/examples/nrf52840/src/bin/gpiote_channel.rs
index 5bfd02465..e254d613d 100644
--- a/examples/nrf52840/src/bin/gpiote_channel.rs
+++ b/examples/nrf52840/src/bin/gpiote_channel.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/gpiote_port.rs b/examples/nrf52840/src/bin/gpiote_port.rs
index 0155d539e..c1afe2f20 100644
--- a/examples/nrf52840/src/bin/gpiote_port.rs
+++ b/examples/nrf52840/src/bin/gpiote_port.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/i2s_effect.rs b/examples/nrf52840/src/bin/i2s_effect.rs
index 391514d93..9eadeb4e4 100644
--- a/examples/nrf52840/src/bin/i2s_effect.rs
+++ b/examples/nrf52840/src/bin/i2s_effect.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::f32::consts::PI;
diff --git a/examples/nrf52840/src/bin/i2s_monitor.rs b/examples/nrf52840/src/bin/i2s_monitor.rs
index 4ed597c0d..799be351f 100644
--- a/examples/nrf52840/src/bin/i2s_monitor.rs
+++ b/examples/nrf52840/src/bin/i2s_monitor.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{debug, error, info};
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/i2s_waveform.rs b/examples/nrf52840/src/bin/i2s_waveform.rs
index f2c1166b1..137d82840 100644
--- a/examples/nrf52840/src/bin/i2s_waveform.rs
+++ b/examples/nrf52840/src/bin/i2s_waveform.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::f32::consts::PI;
diff --git a/examples/nrf52840/src/bin/manually_create_executor.rs b/examples/nrf52840/src/bin/manually_create_executor.rs
index 80364d34a..7ca39348e 100644
--- a/examples/nrf52840/src/bin/manually_create_executor.rs
+++ b/examples/nrf52840/src/bin/manually_create_executor.rs
@@ -3,7 +3,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::{info, unwrap};
diff --git a/examples/nrf52840/src/bin/multiprio.rs b/examples/nrf52840/src/bin/multiprio.rs
index 352f62bf2..b634d8569 100644
--- a/examples/nrf52840/src/bin/multiprio.rs
+++ b/examples/nrf52840/src/bin/multiprio.rs
@@ -55,7 +55,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::{info, unwrap};
diff --git a/examples/nrf52840/src/bin/mutex.rs b/examples/nrf52840/src/bin/mutex.rs
index 11b47d991..5c22279b5 100644
--- a/examples/nrf52840/src/bin/mutex.rs
+++ b/examples/nrf52840/src/bin/mutex.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/nvmc.rs b/examples/nrf52840/src/bin/nvmc.rs
index 624829863..a79385b98 100644
--- a/examples/nrf52840/src/bin/nvmc.rs
+++ b/examples/nrf52840/src/bin/nvmc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/pdm.rs b/examples/nrf52840/src/bin/pdm.rs
index bff323974..52dadc805 100644
--- a/examples/nrf52840/src/bin/pdm.rs
+++ b/examples/nrf52840/src/bin/pdm.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/pdm_continuous.rs b/examples/nrf52840/src/bin/pdm_continuous.rs
index 7d8531475..e948203a5 100644
--- a/examples/nrf52840/src/bin/pdm_continuous.rs
+++ b/examples/nrf52840/src/bin/pdm_continuous.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::cmp::Ordering;
diff --git a/examples/nrf52840/src/bin/ppi.rs b/examples/nrf52840/src/bin/ppi.rs
index d74ce4064..129ad06e7 100644
--- a/examples/nrf52840/src/bin/ppi.rs
+++ b/examples/nrf52840/src/bin/ppi.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::future::pending;
diff --git a/examples/nrf52840/src/bin/pubsub.rs b/examples/nrf52840/src/bin/pubsub.rs
index 17d902227..5ebea9220 100644
--- a/examples/nrf52840/src/bin/pubsub.rs
+++ b/examples/nrf52840/src/bin/pubsub.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::unwrap;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/pwm.rs b/examples/nrf52840/src/bin/pwm.rs
index 9750935c8..a5bb1347a 100644
--- a/examples/nrf52840/src/bin/pwm.rs
+++ b/examples/nrf52840/src/bin/pwm.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/pwm_double_sequence.rs b/examples/nrf52840/src/bin/pwm_double_sequence.rs
index 1bfe6e15a..386c483b8 100644
--- a/examples/nrf52840/src/bin/pwm_double_sequence.rs
+++ b/examples/nrf52840/src/bin/pwm_double_sequence.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/pwm_sequence.rs b/examples/nrf52840/src/bin/pwm_sequence.rs
index f282cf910..87eda265f 100644
--- a/examples/nrf52840/src/bin/pwm_sequence.rs
+++ b/examples/nrf52840/src/bin/pwm_sequence.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/pwm_sequence_ppi.rs b/examples/nrf52840/src/bin/pwm_sequence_ppi.rs
index 6594fa348..60ea712b5 100644
--- a/examples/nrf52840/src/bin/pwm_sequence_ppi.rs
+++ b/examples/nrf52840/src/bin/pwm_sequence_ppi.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::future::pending;
diff --git a/examples/nrf52840/src/bin/pwm_sequence_ws2812b.rs b/examples/nrf52840/src/bin/pwm_sequence_ws2812b.rs
index 8596e6545..751cf4425 100644
--- a/examples/nrf52840/src/bin/pwm_sequence_ws2812b.rs
+++ b/examples/nrf52840/src/bin/pwm_sequence_ws2812b.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/pwm_servo.rs b/examples/nrf52840/src/bin/pwm_servo.rs
index 92ded1f88..d772d2f5d 100644
--- a/examples/nrf52840/src/bin/pwm_servo.rs
+++ b/examples/nrf52840/src/bin/pwm_servo.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/qdec.rs b/examples/nrf52840/src/bin/qdec.rs
index 59783d312..ea849be63 100644
--- a/examples/nrf52840/src/bin/qdec.rs
+++ b/examples/nrf52840/src/bin/qdec.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/qspi.rs b/examples/nrf52840/src/bin/qspi.rs
index 9e8a01f4e..4539dd0e3 100644
--- a/examples/nrf52840/src/bin/qspi.rs
+++ b/examples/nrf52840/src/bin/qspi.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{assert_eq, info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/qspi_lowpower.rs b/examples/nrf52840/src/bin/qspi_lowpower.rs
index 42b5454e0..516c9b481 100644
--- a/examples/nrf52840/src/bin/qspi_lowpower.rs
+++ b/examples/nrf52840/src/bin/qspi_lowpower.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::mem;
diff --git a/examples/nrf52840/src/bin/rng.rs b/examples/nrf52840/src/bin/rng.rs
index 855743f50..326054c9a 100644
--- a/examples/nrf52840/src/bin/rng.rs
+++ b/examples/nrf52840/src/bin/rng.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use embassy_executor::Spawner;
 use embassy_nrf::rng::Rng;
diff --git a/examples/nrf52840/src/bin/saadc.rs b/examples/nrf52840/src/bin/saadc.rs
index d651834f5..653b7d606 100644
--- a/examples/nrf52840/src/bin/saadc.rs
+++ b/examples/nrf52840/src/bin/saadc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/saadc_continuous.rs b/examples/nrf52840/src/bin/saadc_continuous.rs
index a5f8a4dd7..f76fa3570 100644
--- a/examples/nrf52840/src/bin/saadc_continuous.rs
+++ b/examples/nrf52840/src/bin/saadc_continuous.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/self_spawn.rs b/examples/nrf52840/src/bin/self_spawn.rs
index 8a58396a4..5bfefc2af 100644
--- a/examples/nrf52840/src/bin/self_spawn.rs
+++ b/examples/nrf52840/src/bin/self_spawn.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/self_spawn_current_executor.rs b/examples/nrf52840/src/bin/self_spawn_current_executor.rs
index 65d50f8c3..ec9569a64 100644
--- a/examples/nrf52840/src/bin/self_spawn_current_executor.rs
+++ b/examples/nrf52840/src/bin/self_spawn_current_executor.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/spim.rs b/examples/nrf52840/src/bin/spim.rs
index 9d1843a8f..131187660 100644
--- a/examples/nrf52840/src/bin/spim.rs
+++ b/examples/nrf52840/src/bin/spim.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/spis.rs b/examples/nrf52840/src/bin/spis.rs
index 77b6e8b64..613cd37ab 100644
--- a/examples/nrf52840/src/bin/spis.rs
+++ b/examples/nrf52840/src/bin/spis.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/temp.rs b/examples/nrf52840/src/bin/temp.rs
index d94dea38d..1d28f8ecf 100644
--- a/examples/nrf52840/src/bin/temp.rs
+++ b/examples/nrf52840/src/bin/temp.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/timer.rs b/examples/nrf52840/src/bin/timer.rs
index 9b9bb3eb4..365695a20 100644
--- a/examples/nrf52840/src/bin/timer.rs
+++ b/examples/nrf52840/src/bin/timer.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/twim.rs b/examples/nrf52840/src/bin/twim.rs
index 959e3a4be..a9a0765e8 100644
--- a/examples/nrf52840/src/bin/twim.rs
+++ b/examples/nrf52840/src/bin/twim.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/twim_lowpower.rs b/examples/nrf52840/src/bin/twim_lowpower.rs
index bf9f966ef..c743614b8 100644
--- a/examples/nrf52840/src/bin/twim_lowpower.rs
+++ b/examples/nrf52840/src/bin/twim_lowpower.rs
@@ -6,7 +6,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::mem;
diff --git a/examples/nrf52840/src/bin/twis.rs b/examples/nrf52840/src/bin/twis.rs
index aa42b679e..88bd4cceb 100644
--- a/examples/nrf52840/src/bin/twis.rs
+++ b/examples/nrf52840/src/bin/twis.rs
@@ -2,7 +2,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/uart.rs b/examples/nrf52840/src/bin/uart.rs
index 50d5cab8c..accaccea1 100644
--- a/examples/nrf52840/src/bin/uart.rs
+++ b/examples/nrf52840/src/bin/uart.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/uart_idle.rs b/examples/nrf52840/src/bin/uart_idle.rs
index e1f42fa6c..fa93bcf21 100644
--- a/examples/nrf52840/src/bin/uart_idle.rs
+++ b/examples/nrf52840/src/bin/uart_idle.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/uart_split.rs b/examples/nrf52840/src/bin/uart_split.rs
index b748bfcd8..c7510a9a8 100644
--- a/examples/nrf52840/src/bin/uart_split.rs
+++ b/examples/nrf52840/src/bin/uart_split.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/usb_ethernet.rs b/examples/nrf52840/src/bin/usb_ethernet.rs
index b7806f418..3469c6e5f 100644
--- a/examples/nrf52840/src/bin/usb_ethernet.rs
+++ b/examples/nrf52840/src/bin/usb_ethernet.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::mem;
@@ -16,7 +15,7 @@ use embassy_usb::class::cdc_ncm::embassy_net::{Device, Runner, State as NetState
 use embassy_usb::class::cdc_ncm::{CdcNcmClass, State};
 use embassy_usb::{Builder, Config, UsbDevice};
 use embedded_io_async::Write;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -71,14 +70,19 @@ async fn main(spawner: Spawner) {
    config.device_protocol = 0x01;
    // Create embassy-usb DeviceBuilder using the driver and config.
+    static DEVICE_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static CONFIG_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static BOS_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static MSOS_DESC: StaticCell<[u8; 128]> = StaticCell::new();
+    static CONTROL_BUF: StaticCell<[u8; 128]> = StaticCell::new();
    let mut builder = Builder::new(
        driver,
        config,
-        &mut make_static!([0; 256])[..],
+        &mut DEVICE_DESC.init([0; 256])[..],
-        &mut make_static!([0; 256])[..],
+        &mut CONFIG_DESC.init([0; 256])[..],
-        &mut make_static!([0; 256])[..],
+        &mut BOS_DESC.init([0; 256])[..],
-        &mut make_static!([0; 128])[..],
+        &mut MSOS_DESC.init([0; 128])[..],
-        &mut make_static!([0; 128])[..],
+        &mut CONTROL_BUF.init([0; 128])[..],
    );
    // Our MAC addr.
@@ -87,14 +91,16 @@ async fn main(spawner: Spawner) {
    let host_mac_addr = [0x88, 0x88, 0x88, 0x88, 0x88, 0x88];
    // Create classes on the builder.
-    let class = CdcNcmClass::new(&mut builder, make_static!(State::new()), host_mac_addr, 64);
+    static STATE: StaticCell<State> = StaticCell::new();
+    let class = CdcNcmClass::new(&mut builder, STATE.init(State::new()), host_mac_addr, 64);
    // Build the builder.
    let usb = builder.build();
    unwrap!(spawner.spawn(usb_task(usb)));
-    let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
+    static NET_STATE: StaticCell<NetState<MTU, 4, 4>> = StaticCell::new();
+    let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(NET_STATE.init(NetState::new()), our_mac_addr);
    unwrap!(spawner.spawn(usb_ncm_task(runner)));
    let config = embassy_net::Config::dhcpv4(Default::default());
@@ -111,12 +117,9 @@ async fn main(spawner: Spawner) {
    let seed = u64::from_le_bytes(seed);
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
-        device,
+    static STACK: StaticCell<Stack<Device<'static, MTU>>> = StaticCell::new();
-        config,
+    let stack = &*STACK.init(Stack::new(device, config, RESOURCES.init(StackResources::new()), seed));
-        make_static!(StackResources::<2>::new()),
-        seed
-    ));
    unwrap!(spawner.spawn(net_task(stack)));
diff --git a/examples/nrf52840/src/bin/usb_hid_keyboard.rs b/examples/nrf52840/src/bin/usb_hid_keyboard.rs
index 7ccd2946a..45850b4a4 100644
--- a/examples/nrf52840/src/bin/usb_hid_keyboard.rs
+++ b/examples/nrf52840/src/bin/usb_hid_keyboard.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::mem;
 use core::sync::atomic::{AtomicBool, Ordering};
diff --git a/examples/nrf52840/src/bin/usb_hid_mouse.rs b/examples/nrf52840/src/bin/usb_hid_mouse.rs
index 96fcf8a66..04ad841b7 100644
--- a/examples/nrf52840/src/bin/usb_hid_mouse.rs
+++ b/examples/nrf52840/src/bin/usb_hid_mouse.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::mem;
diff --git a/examples/nrf52840/src/bin/usb_serial.rs b/examples/nrf52840/src/bin/usb_serial.rs
index dc95cde84..aff539b1b 100644
--- a/examples/nrf52840/src/bin/usb_serial.rs
+++ b/examples/nrf52840/src/bin/usb_serial.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::mem;
diff --git a/examples/nrf52840/src/bin/usb_serial_multitask.rs b/examples/nrf52840/src/bin/usb_serial_multitask.rs
index cd4392903..4e8118fb8 100644
--- a/examples/nrf52840/src/bin/usb_serial_multitask.rs
+++ b/examples/nrf52840/src/bin/usb_serial_multitask.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::mem;
@@ -12,7 +11,7 @@ use embassy_nrf::{bind_interrupts, pac, peripherals, usb};
 use embassy_usb::class::cdc_acm::{CdcAcmClass, State};
 use embassy_usb::driver::EndpointError;
 use embassy_usb::{Builder, Config, UsbDevice};
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -64,17 +63,23 @@ async fn main(spawner: Spawner) {
    config.device_protocol = 0x01;
    config.composite_with_iads = true;
-    let state = make_static!(State::new());
+    static STATE: StaticCell<State> = StaticCell::new();
+    let state = STATE.init(State::new());
    // Create embassy-usb DeviceBuilder using the driver and config.
+    static DEVICE_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static CONFIG_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static BOS_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static MSOS_DESC: StaticCell<[u8; 128]> = StaticCell::new();
+    static CONTROL_BUF: StaticCell<[u8; 128]> = StaticCell::new();
    let mut builder = Builder::new(
        driver,
        config,
-        &mut make_static!([0; 256])[..],
+        &mut DEVICE_DESC.init([0; 256])[..],
-        &mut make_static!([0; 256])[..],
+        &mut CONFIG_DESC.init([0; 256])[..],
-        &mut make_static!([0; 256])[..],
+        &mut BOS_DESC.init([0; 256])[..],
-        &mut make_static!([0; 128])[..],
+        &mut MSOS_DESC.init([0; 128])[..],
-        &mut make_static!([0; 128])[..],
+        &mut CONTROL_BUF.init([0; 128])[..],
    );
    // Create classes on the builder.
diff --git a/examples/nrf52840/src/bin/usb_serial_winusb.rs b/examples/nrf52840/src/bin/usb_serial_winusb.rs
index 1d39d3841..060f9ba94 100644
--- a/examples/nrf52840/src/bin/usb_serial_winusb.rs
+++ b/examples/nrf52840/src/bin/usb_serial_winusb.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::mem;
diff --git a/examples/nrf52840/src/bin/wdt.rs b/examples/nrf52840/src/bin/wdt.rs
index 058746518..ede88cc26 100644
--- a/examples/nrf52840/src/bin/wdt.rs
+++ b/examples/nrf52840/src/bin/wdt.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/nrf52840/src/bin/wifi_esp_hosted.rs b/examples/nrf52840/src/bin/wifi_esp_hosted.rs
index a60822fd9..fc2086f75 100644
--- a/examples/nrf52840/src/bin/wifi_esp_hosted.rs
+++ b/examples/nrf52840/src/bin/wifi_esp_hosted.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap, warn};
 use embassy_executor::Spawner;
@@ -13,7 +12,7 @@ use embassy_nrf::{bind_interrupts, peripherals};
 use embassy_time::Delay;
 use embedded_hal_bus::spi::ExclusiveDevice;
 use embedded_io_async::Write;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, embassy_net_esp_hosted as hosted, panic_probe as _};
 const WIFI_NETWORK: &str = "EmbassyTest";
@@ -61,8 +60,9 @@ async fn main(spawner: Spawner) {
    let spi = spim::Spim::new(p.SPI3, Irqs, sck, miso, mosi, config);
    let spi = ExclusiveDevice::new(spi, cs, Delay);
+    static ESP_STATE: StaticCell<embassy_net_esp_hosted::State> = StaticCell::new();
    let (device, mut control, runner) = embassy_net_esp_hosted::new(
-        make_static!(embassy_net_esp_hosted::State::new()),
+        ESP_STATE.init(embassy_net_esp_hosted::State::new()),
        spi,
        handshake,
        ready,
@@ -89,11 +89,13 @@ async fn main(spawner: Spawner) {
    let seed = u64::from_le_bytes(seed);
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    static STACK: StaticCell<Stack<hosted::NetDriver<'static>>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    unwrap!(spawner.spawn(net_task(stack)));
diff --git a/examples/nrf5340/Cargo.toml b/examples/nrf5340/Cargo.toml
index 17d3e30e4..fc0346f90 100644
--- a/examples/nrf5340/Cargo.toml
+++ b/examples/nrf5340/Cargo.toml
@@ -7,7 +7,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "nightly", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime"] }
 embassy-nrf = { version = "0.1.0", path = "../../embassy-nrf", features = ["defmt", "nrf5340-app-s", "time-driver-rtc1", "gpiote", "unstable-pac"] }
 embassy-net = { version = "0.2.0", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet"] }
@@ -17,7 +17,7 @@ embedded-io-async = { version = "0.6.1" }
 defmt = "0.3"
 defmt-rtt = "0.4"
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
diff --git a/examples/nrf5340/src/bin/blinky.rs b/examples/nrf5340/src/bin/blinky.rs
index b784564a5..5c533c9b1 100644
--- a/examples/nrf5340/src/bin/blinky.rs
+++ b/examples/nrf5340/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use embassy_executor::Spawner;
 use embassy_nrf::gpio::{Level, Output, OutputDrive};
diff --git a/examples/nrf5340/src/bin/gpiote_channel.rs b/examples/nrf5340/src/bin/gpiote_channel.rs
index ceab1194a..c0a55142f 100644
--- a/examples/nrf5340/src/bin/gpiote_channel.rs
+++ b/examples/nrf5340/src/bin/gpiote_channel.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/nrf5340/src/bin/uart.rs b/examples/nrf5340/src/bin/uart.rs
index d68539702..7b41d7463 100644
--- a/examples/nrf5340/src/bin/uart.rs
+++ b/examples/nrf5340/src/bin/uart.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/Cargo.toml b/examples/rp/Cargo.toml
index 7f637758d..07de83203 100644
--- a/examples/rp/Cargo.toml
+++ b/examples/rp/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-embedded-hal = { version = "0.1.0", path = "../../embassy-embedded-hal", features = ["defmt"] }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime"] }
 embassy-rp = { version = "0.1.0", path = "../../embassy-rp", features = ["defmt", "unstable-pac", "time-driver", "critical-section-impl"] }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
@@ -38,12 +38,12 @@ smart-leds = "0.3.0"
 heapless = "0.8"
 usbd-hid = "0.6.1"
-embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-rc.2" }
+embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-rc.3" }
-embedded-hal-async = "1.0.0-rc.2"
+embedded-hal-async = "1.0.0-rc.3"
-embedded-hal-bus = { version = "0.1.0-rc.2", features = ["async"] }
+embedded-hal-bus = { version = "0.1.0-rc.3", features = ["async"] }
 embedded-io-async = { version = "0.6.1", features = ["defmt-03"] }
 embedded-storage = { version = "0.3" }
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 portable-atomic = { version = "1.5", features = ["critical-section"] }
 log = "0.4"
 pio-proc = "0.2"
diff --git a/examples/rp/src/bin/adc.rs b/examples/rp/src/bin/adc.rs
index a579be139..1bb7c2249 100644
--- a/examples/rp/src/bin/adc.rs
+++ b/examples/rp/src/bin/adc.rs
@@ -3,7 +3,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/blinky.rs b/examples/rp/src/bin/blinky.rs
index 66c8773fa..60fc45a70 100644
--- a/examples/rp/src/bin/blinky.rs
+++ b/examples/rp/src/bin/blinky.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/button.rs b/examples/rp/src/bin/button.rs
index d7aa89410..e9054fd48 100644
--- a/examples/rp/src/bin/button.rs
+++ b/examples/rp/src/bin/button.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use embassy_executor::Spawner;
 use embassy_rp::gpio::{Input, Level, Output, Pull};
@@ -17,7 +16,7 @@ async fn main(_spawner: Spawner) {
    // Use PIN_28, Pin34 on J0 for RP Pico, as a input.
    // You need to add your own button.
-    let button = Input::new(p.PIN_28, Pull::Up);
+    let mut button = Input::new(p.PIN_28, Pull::Up);
    loop {
        if button.is_high() {
diff --git a/examples/rp/src/bin/ethernet_w5500_multisocket.rs b/examples/rp/src/bin/ethernet_w5500_multisocket.rs
index c0fde62ab..a16ea0007 100644
--- a/examples/rp/src/bin/ethernet_w5500_multisocket.rs
+++ b/examples/rp/src/bin/ethernet_w5500_multisocket.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -20,7 +19,7 @@ use embassy_time::{Delay, Duration};
 use embedded_hal_bus::spi::ExclusiveDevice;
 use embedded_io_async::Write;
 use rand::RngCore;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 #[embassy_executor::task]
@@ -55,7 +54,8 @@ async fn main(spawner: Spawner) {
    let w5500_reset = Output::new(p.PIN_20, Level::High);
    let mac_addr = [0x02, 0x00, 0x00, 0x00, 0x00, 0x00];
-    let state = make_static!(State::<8, 8>::new());
+    static STATE: StaticCell<State<8, 8>> = StaticCell::new();
+    let state = STATE.init(State::<8, 8>::new());
    let (device, runner) = embassy_net_wiznet::new(
        mac_addr,
        state,
@@ -70,11 +70,13 @@ async fn main(spawner: Spawner) {
    let seed = rng.next_u64();
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device<'static>>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<3>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        embassy_net::Config::dhcpv4(Default::default()),
-        make_static!(StackResources::<3>::new()),
+        RESOURCES.init(StackResources::<3>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/rp/src/bin/ethernet_w5500_tcp_client.rs b/examples/rp/src/bin/ethernet_w5500_tcp_client.rs
index b19362fc1..975b3d385 100644
--- a/examples/rp/src/bin/ethernet_w5500_tcp_client.rs
+++ b/examples/rp/src/bin/ethernet_w5500_tcp_client.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::str::FromStr;
@@ -22,7 +21,7 @@ use embassy_time::{Delay, Duration, Timer};
 use embedded_hal_bus::spi::ExclusiveDevice;
 use embedded_io_async::Write;
 use rand::RngCore;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 #[embassy_executor::task]
@@ -58,7 +57,8 @@ async fn main(spawner: Spawner) {
    let w5500_reset = Output::new(p.PIN_20, Level::High);
    let mac_addr = [0x02, 0x00, 0x00, 0x00, 0x00, 0x00];
-    let state = make_static!(State::<8, 8>::new());
+    static STATE: StaticCell<State<8, 8>> = StaticCell::new();
+    let state = STATE.init(State::<8, 8>::new());
    let (device, runner) = embassy_net_wiznet::new(
        mac_addr,
        state,
@@ -73,11 +73,13 @@ async fn main(spawner: Spawner) {
    let seed = rng.next_u64();
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device<'static>>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        embassy_net::Config::dhcpv4(Default::default()),
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/rp/src/bin/ethernet_w5500_tcp_server.rs b/examples/rp/src/bin/ethernet_w5500_tcp_server.rs
index c62caed7a..489af2c76 100644
--- a/examples/rp/src/bin/ethernet_w5500_tcp_server.rs
+++ b/examples/rp/src/bin/ethernet_w5500_tcp_server.rs
@@ -5,7 +5,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -21,7 +20,7 @@ use embassy_time::{Delay, Duration};
 use embedded_hal_bus::spi::ExclusiveDevice;
 use embedded_io_async::Write;
 use rand::RngCore;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 #[embassy_executor::task]
@@ -57,7 +56,8 @@ async fn main(spawner: Spawner) {
    let w5500_reset = Output::new(p.PIN_20, Level::High);
    let mac_addr = [0x02, 0x00, 0x00, 0x00, 0x00, 0x00];
-    let state = make_static!(State::<8, 8>::new());
+    static STATE: StaticCell<State<8, 8>> = StaticCell::new();
+    let state = STATE.init(State::<8, 8>::new());
    let (device, runner) = embassy_net_wiznet::new(
        mac_addr,
        state,
@@ -72,11 +72,13 @@ async fn main(spawner: Spawner) {
    let seed = rng.next_u64();
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device<'static>>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        embassy_net::Config::dhcpv4(Default::default()),
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/rp/src/bin/ethernet_w5500_udp.rs b/examples/rp/src/bin/ethernet_w5500_udp.rs
index 76dabce1c..41bd7d077 100644
--- a/examples/rp/src/bin/ethernet_w5500_udp.rs
+++ b/examples/rp/src/bin/ethernet_w5500_udp.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -20,7 +19,7 @@ use embassy_rp::spi::{Async, Config as SpiConfig, Spi};
 use embassy_time::Delay;
 use embedded_hal_bus::spi::ExclusiveDevice;
 use rand::RngCore;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 #[embassy_executor::task]
@@ -55,7 +54,8 @@ async fn main(spawner: Spawner) {
    let w5500_reset = Output::new(p.PIN_20, Level::High);
    let mac_addr = [0x02, 0x00, 0x00, 0x00, 0x00, 0x00];
-    let state = make_static!(State::<8, 8>::new());
+    static STATE: StaticCell<State<8, 8>> = StaticCell::new();
+    let state = STATE.init(State::<8, 8>::new());
    let (device, runner) = embassy_net_wiznet::new(
        mac_addr,
        state,
@@ -70,11 +70,13 @@ async fn main(spawner: Spawner) {
    let seed = rng.next_u64();
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device<'static>>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        embassy_net::Config::dhcpv4(Default::default()),
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/rp/src/bin/flash.rs b/examples/rp/src/bin/flash.rs
index 129a8497f..eb3e6a2b9 100644
--- a/examples/rp/src/bin/flash.rs
+++ b/examples/rp/src/bin/flash.rs
@@ -2,7 +2,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/gpio_async.rs b/examples/rp/src/bin/gpio_async.rs
index 98209fe41..b79fb2a15 100644
--- a/examples/rp/src/bin/gpio_async.rs
+++ b/examples/rp/src/bin/gpio_async.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/gpout.rs b/examples/rp/src/bin/gpout.rs
index 896cc15ee..011359253 100644
--- a/examples/rp/src/bin/gpout.rs
+++ b/examples/rp/src/bin/gpout.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/i2c_async.rs b/examples/rp/src/bin/i2c_async.rs
index 7b53aae72..e31cc894c 100644
--- a/examples/rp/src/bin/i2c_async.rs
+++ b/examples/rp/src/bin/i2c_async.rs
@@ -5,7 +5,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/i2c_blocking.rs b/examples/rp/src/bin/i2c_blocking.rs
index 9ddb48d69..c9c8a2760 100644
--- a/examples/rp/src/bin/i2c_blocking.rs
+++ b/examples/rp/src/bin/i2c_blocking.rs
@@ -5,7 +5,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/i2c_slave.rs b/examples/rp/src/bin/i2c_slave.rs
index 151b083a4..479f9a16a 100644
--- a/examples/rp/src/bin/i2c_slave.rs
+++ b/examples/rp/src/bin/i2c_slave.rs
@@ -1,7 +1,6 @@
 //! This example shows how to use the 2040 as an i2c slave.
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/multicore.rs b/examples/rp/src/bin/multicore.rs
index 43eaf8b0a..a1678d99a 100644
--- a/examples/rp/src/bin/multicore.rs
+++ b/examples/rp/src/bin/multicore.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Executor;
diff --git a/examples/rp/src/bin/multiprio.rs b/examples/rp/src/bin/multiprio.rs
index 28f621437..26b80c11d 100644
--- a/examples/rp/src/bin/multiprio.rs
+++ b/examples/rp/src/bin/multiprio.rs
@@ -55,7 +55,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::{info, unwrap};
diff --git a/examples/rp/src/bin/pio_async.rs b/examples/rp/src/bin/pio_async.rs
index a6d6144be..ee248591b 100644
--- a/examples/rp/src/bin/pio_async.rs
+++ b/examples/rp/src/bin/pio_async.rs
@@ -2,7 +2,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
 use embassy_rp::bind_interrupts;
diff --git a/examples/rp/src/bin/pio_dma.rs b/examples/rp/src/bin/pio_dma.rs
index 86e5017ac..02700269c 100644
--- a/examples/rp/src/bin/pio_dma.rs
+++ b/examples/rp/src/bin/pio_dma.rs
@@ -2,7 +2,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
 use embassy_futures::join::join;
diff --git a/examples/rp/src/bin/pio_hd44780.rs b/examples/rp/src/bin/pio_hd44780.rs
index 5e5a6f9a3..3fab7b5f2 100644
--- a/examples/rp/src/bin/pio_hd44780.rs
+++ b/examples/rp/src/bin/pio_hd44780.rs
@@ -3,7 +3,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
diff --git a/examples/rp/src/bin/pio_rotary_encoder.rs b/examples/rp/src/bin/pio_rotary_encoder.rs
index 6d9d59df6..58bdadbc0 100644
--- a/examples/rp/src/bin/pio_rotary_encoder.rs
+++ b/examples/rp/src/bin/pio_rotary_encoder.rs
@@ -2,7 +2,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/pio_stepper.rs b/examples/rp/src/bin/pio_stepper.rs
index 02fb20699..ab9ecf623 100644
--- a/examples/rp/src/bin/pio_stepper.rs
+++ b/examples/rp/src/bin/pio_stepper.rs
@@ -3,7 +3,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::mem::{self, MaybeUninit};
 use defmt::info;
diff --git a/examples/rp/src/bin/pio_uart.rs b/examples/rp/src/bin/pio_uart.rs
index c0ea23607..a07f1c180 100644
--- a/examples/rp/src/bin/pio_uart.rs
+++ b/examples/rp/src/bin/pio_uart.rs
@@ -8,7 +8,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #![allow(async_fn_in_trait)]
 use defmt::{info, panic, trace};
diff --git a/examples/rp/src/bin/pio_ws2812.rs b/examples/rp/src/bin/pio_ws2812.rs
index 7b3259538..9a97cb8a7 100644
--- a/examples/rp/src/bin/pio_ws2812.rs
+++ b/examples/rp/src/bin/pio_ws2812.rs
@@ -3,7 +3,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/pwm.rs b/examples/rp/src/bin/pwm.rs
index a99e88003..4fb62546d 100644
--- a/examples/rp/src/bin/pwm.rs
+++ b/examples/rp/src/bin/pwm.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/pwm_input.rs b/examples/rp/src/bin/pwm_input.rs
index 0fc2e40c3..e7bcbfbd4 100644
--- a/examples/rp/src/bin/pwm_input.rs
+++ b/examples/rp/src/bin/pwm_input.rs
@@ -2,7 +2,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/rosc.rs b/examples/rp/src/bin/rosc.rs
index f841043b6..942b72319 100644
--- a/examples/rp/src/bin/rosc.rs
+++ b/examples/rp/src/bin/rosc.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/rtc.rs b/examples/rp/src/bin/rtc.rs
index 667876db5..e9a5e43a8 100644
--- a/examples/rp/src/bin/rtc.rs
+++ b/examples/rp/src/bin/rtc.rs
@@ -2,7 +2,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/spi.rs b/examples/rp/src/bin/spi.rs
index 602348f7a..4cc4f5210 100644
--- a/examples/rp/src/bin/spi.rs
+++ b/examples/rp/src/bin/spi.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/spi_async.rs b/examples/rp/src/bin/spi_async.rs
index f5a2d334e..266584efc 100644
--- a/examples/rp/src/bin/spi_async.rs
+++ b/examples/rp/src/bin/spi_async.rs
@@ -3,7 +3,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/spi_display.rs b/examples/rp/src/bin/spi_display.rs
index 26c258e1c..e937b9d0a 100644
--- a/examples/rp/src/bin/spi_display.rs
+++ b/examples/rp/src/bin/spi_display.rs
@@ -5,7 +5,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::cell::RefCell;
diff --git a/examples/rp/src/bin/uart.rs b/examples/rp/src/bin/uart.rs
index 451c3c396..6a2816cd0 100644
--- a/examples/rp/src/bin/uart.rs
+++ b/examples/rp/src/bin/uart.rs
@@ -6,7 +6,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use embassy_executor::Spawner;
 use embassy_rp::uart;
diff --git a/examples/rp/src/bin/uart_buffered_split.rs b/examples/rp/src/bin/uart_buffered_split.rs
index 14e8810a4..fac61aa04 100644
--- a/examples/rp/src/bin/uart_buffered_split.rs
+++ b/examples/rp/src/bin/uart_buffered_split.rs
@@ -6,7 +6,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -15,7 +14,7 @@ use embassy_rp::peripherals::UART0;
 use embassy_rp::uart::{BufferedInterruptHandler, BufferedUart, BufferedUartRx, Config};
 use embassy_time::Timer;
 use embedded_io_async::{Read, Write};
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -27,8 +26,10 @@ async fn main(spawner: Spawner) {
    let p = embassy_rp::init(Default::default());
    let (tx_pin, rx_pin, uart) = (p.PIN_0, p.PIN_1, p.UART0);
-    let tx_buf = &mut make_static!([0u8; 16])[..];
+    static TX_BUF: StaticCell<[u8; 16]> = StaticCell::new();
-    let rx_buf = &mut make_static!([0u8; 16])[..];
+    let tx_buf = &mut TX_BUF.init([0; 16])[..];
+    static RX_BUF: StaticCell<[u8; 16]> = StaticCell::new();
+    let rx_buf = &mut RX_BUF.init([0; 16])[..];
    let uart = BufferedUart::new(uart, Irqs, tx_pin, rx_pin, tx_buf, rx_buf, Config::default());
    let (rx, mut tx) = uart.split();
diff --git a/examples/rp/src/bin/uart_unidir.rs b/examples/rp/src/bin/uart_unidir.rs
index 42c8b432e..a45f40756 100644
--- a/examples/rp/src/bin/uart_unidir.rs
+++ b/examples/rp/src/bin/uart_unidir.rs
@@ -7,7 +7,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/usb_ethernet.rs b/examples/rp/src/bin/usb_ethernet.rs
index cc63029fb..01f0d5967 100644
--- a/examples/rp/src/bin/usb_ethernet.rs
+++ b/examples/rp/src/bin/usb_ethernet.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -17,7 +16,7 @@ use embassy_usb::class::cdc_ncm::embassy_net::{Device, Runner, State as NetState
 use embassy_usb::class::cdc_ncm::{CdcNcmClass, State};
 use embassy_usb::{Builder, Config, UsbDevice};
 use embedded_io_async::Write;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -65,14 +64,18 @@ async fn main(spawner: Spawner) {
    config.device_protocol = 0x01;
    // Create embassy-usb DeviceBuilder using the driver and config.
+    static DEVICE_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static CONFIG_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static BOS_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static CONTROL_BUF: StaticCell<[u8; 128]> = StaticCell::new();
    let mut builder = Builder::new(
        driver,
        config,
-        &mut make_static!([0; 256])[..],
+        &mut DEVICE_DESC.init([0; 256])[..],
-        &mut make_static!([0; 256])[..],
+        &mut CONFIG_DESC.init([0; 256])[..],
-        &mut make_static!([0; 256])[..],
+        &mut BOS_DESC.init([0; 256])[..],
        &mut [], // no msos descriptors
-        &mut make_static!([0; 128])[..],
+        &mut CONTROL_BUF.init([0; 128])[..],
    );
    // Our MAC addr.
@@ -81,14 +84,16 @@ async fn main(spawner: Spawner) {
    let host_mac_addr = [0x88, 0x88, 0x88, 0x88, 0x88, 0x88];
    // Create classes on the builder.
-    let class = CdcNcmClass::new(&mut builder, make_static!(State::new()), host_mac_addr, 64);
+    static STATE: StaticCell<State> = StaticCell::new();
+    let class = CdcNcmClass::new(&mut builder, STATE.init(State::new()), host_mac_addr, 64);
    // Build the builder.
    let usb = builder.build();
    unwrap!(spawner.spawn(usb_task(usb)));
-    let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
+    static NET_STATE: StaticCell<NetState<MTU, 4, 4>> = StaticCell::new();
+    let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(NET_STATE.init(NetState::new()), our_mac_addr);
    unwrap!(spawner.spawn(usb_ncm_task(runner)));
    let config = embassy_net::Config::dhcpv4(Default::default());
@@ -102,11 +107,13 @@ async fn main(spawner: Spawner) {
    let seed = 1234; // guaranteed random, chosen by a fair dice roll
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device<'static, MTU>>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    unwrap!(spawner.spawn(net_task(stack)));
diff --git a/examples/rp/src/bin/usb_hid_keyboard.rs b/examples/rp/src/bin/usb_hid_keyboard.rs
index 569c9b12b..b5ac16245 100644
--- a/examples/rp/src/bin/usb_hid_keyboard.rs
+++ b/examples/rp/src/bin/usb_hid_keyboard.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::sync::atomic::{AtomicBool, Ordering};
diff --git a/examples/rp/src/bin/usb_logger.rs b/examples/rp/src/bin/usb_logger.rs
index 791f15e56..af401ed63 100644
--- a/examples/rp/src/bin/usb_logger.rs
+++ b/examples/rp/src/bin/usb_logger.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use embassy_executor::Spawner;
 use embassy_rp::bind_interrupts;
diff --git a/examples/rp/src/bin/usb_midi.rs b/examples/rp/src/bin/usb_midi.rs
index d5cdae319..95306a35c 100644
--- a/examples/rp/src/bin/usb_midi.rs
+++ b/examples/rp/src/bin/usb_midi.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, panic};
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/usb_raw.rs b/examples/rp/src/bin/usb_raw.rs
index f59262e5c..a6c8a5b2e 100644
--- a/examples/rp/src/bin/usb_raw.rs
+++ b/examples/rp/src/bin/usb_raw.rs
@@ -48,7 +48,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/usb_raw_bulk.rs b/examples/rp/src/bin/usb_raw_bulk.rs
index 288be5a4e..0dc8e9f72 100644
--- a/examples/rp/src/bin/usb_raw_bulk.rs
+++ b/examples/rp/src/bin/usb_raw_bulk.rs
@@ -26,7 +26,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/usb_serial.rs b/examples/rp/src/bin/usb_serial.rs
index 30347d920..ab24a994c 100644
--- a/examples/rp/src/bin/usb_serial.rs
+++ b/examples/rp/src/bin/usb_serial.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, panic};
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/watchdog.rs b/examples/rp/src/bin/watchdog.rs
index b6af518af..b9d4ef22f 100644
--- a/examples/rp/src/bin/watchdog.rs
+++ b/examples/rp/src/bin/watchdog.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/rp/src/bin/wifi_ap_tcp_server.rs b/examples/rp/src/bin/wifi_ap_tcp_server.rs
index ad1fa6462..1bd75607e 100644
--- a/examples/rp/src/bin/wifi_ap_tcp_server.rs
+++ b/examples/rp/src/bin/wifi_ap_tcp_server.rs
@@ -3,7 +3,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #![allow(async_fn_in_trait)]
 use core::str::from_utf8;
@@ -19,7 +18,7 @@ use embassy_rp::peripherals::{DMA_CH0, PIN_23, PIN_25, PIO0};
 use embassy_rp::pio::{InterruptHandler, Pio};
 use embassy_time::Duration;
 use embedded_io_async::Write;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -59,7 +58,8 @@ async fn main(spawner: Spawner) {
    let mut pio = Pio::new(p.PIO0, Irqs);
    let spi = PioSpi::new(&mut pio.common, pio.sm0, pio.irq0, cs, p.PIN_24, p.PIN_29, p.DMA_CH0);
-    let state = make_static!(cyw43::State::new());
+    static STATE: StaticCell<cyw43::State> = StaticCell::new();
+    let state = STATE.init(cyw43::State::new());
    let (net_device, mut control, runner) = cyw43::new(state, pwr, spi, fw).await;
    unwrap!(spawner.spawn(wifi_task(runner)));
@@ -79,11 +79,13 @@ async fn main(spawner: Spawner) {
    let seed = 0x0123_4567_89ab_cdef; // chosen by fair dice roll. guarenteed to be random.
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<cyw43::NetDriver<'static>>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        net_device,
        config,
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    unwrap!(spawner.spawn(net_task(stack)));
diff --git a/examples/rp/src/bin/wifi_blinky.rs b/examples/rp/src/bin/wifi_blinky.rs
index 14ace74e9..1ed74993c 100644
--- a/examples/rp/src/bin/wifi_blinky.rs
+++ b/examples/rp/src/bin/wifi_blinky.rs
@@ -4,7 +4,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cyw43_pio::PioSpi;
 use defmt::*;
@@ -14,7 +13,7 @@ use embassy_rp::gpio::{Level, Output};
 use embassy_rp::peripherals::{DMA_CH0, PIN_23, PIN_25, PIO0};
 use embassy_rp::pio::{InterruptHandler, Pio};
 use embassy_time::{Duration, Timer};
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -46,7 +45,8 @@ async fn main(spawner: Spawner) {
    let mut pio = Pio::new(p.PIO0, Irqs);
    let spi = PioSpi::new(&mut pio.common, pio.sm0, pio.irq0, cs, p.PIN_24, p.PIN_29, p.DMA_CH0);
-    let state = make_static!(cyw43::State::new());
+    static STATE: StaticCell<cyw43::State> = StaticCell::new();
+    let state = STATE.init(cyw43::State::new());
    let (_net_device, mut control, runner) = cyw43::new(state, pwr, spi, fw).await;
    unwrap!(spawner.spawn(wifi_task(runner)));
diff --git a/examples/rp/src/bin/wifi_scan.rs b/examples/rp/src/bin/wifi_scan.rs
index 7adf52b88..45bb5b76c 100644
--- a/examples/rp/src/bin/wifi_scan.rs
+++ b/examples/rp/src/bin/wifi_scan.rs
@@ -3,7 +3,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #![allow(async_fn_in_trait)]
 use core::str;
@@ -16,7 +15,7 @@ use embassy_rp::bind_interrupts;
 use embassy_rp::gpio::{Level, Output};
 use embassy_rp::peripherals::{DMA_CH0, PIN_23, PIN_25, PIO0};
 use embassy_rp::pio::{InterruptHandler, Pio};
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -56,7 +55,8 @@ async fn main(spawner: Spawner) {
    let mut pio = Pio::new(p.PIO0, Irqs);
    let spi = PioSpi::new(&mut pio.common, pio.sm0, pio.irq0, cs, p.PIN_24, p.PIN_29, p.DMA_CH0);
-    let state = make_static!(cyw43::State::new());
+    static STATE: StaticCell<cyw43::State> = StaticCell::new();
+    let state = STATE.init(cyw43::State::new());
    let (_net_device, mut control, runner) = cyw43::new(state, pwr, spi, fw).await;
    unwrap!(spawner.spawn(wifi_task(runner)));
diff --git a/examples/rp/src/bin/wifi_tcp_server.rs b/examples/rp/src/bin/wifi_tcp_server.rs
index ec6b4ee74..c346f1ded 100644
--- a/examples/rp/src/bin/wifi_tcp_server.rs
+++ b/examples/rp/src/bin/wifi_tcp_server.rs
@@ -3,7 +3,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 #![allow(async_fn_in_trait)]
 use core::str::from_utf8;
@@ -19,7 +18,7 @@ use embassy_rp::peripherals::{DMA_CH0, PIN_23, PIN_25, PIO0};
 use embassy_rp::pio::{InterruptHandler, Pio};
 use embassy_time::{Duration, Timer};
 use embedded_io_async::Write;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -62,7 +61,8 @@ async fn main(spawner: Spawner) {
    let mut pio = Pio::new(p.PIO0, Irqs);
    let spi = PioSpi::new(&mut pio.common, pio.sm0, pio.irq0, cs, p.PIN_24, p.PIN_29, p.DMA_CH0);
-    let state = make_static!(cyw43::State::new());
+    static STATE: StaticCell<cyw43::State> = StaticCell::new();
+    let state = STATE.init(cyw43::State::new());
    let (net_device, mut control, runner) = cyw43::new(state, pwr, spi, fw).await;
    unwrap!(spawner.spawn(wifi_task(runner)));
@@ -82,11 +82,13 @@ async fn main(spawner: Spawner) {
    let seed = 0x0123_4567_89ab_cdef; // chosen by fair dice roll. guarenteed to be random.
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<cyw43::NetDriver<'static>>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        net_device,
        config,
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    unwrap!(spawner.spawn(net_task(stack)));
diff --git a/examples/std/Cargo.toml b/examples/std/Cargo.toml
index ccc0a4afc..a4f306865 100644
--- a/examples/std/Cargo.toml
+++ b/examples/std/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["log"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-std", "executor-thread", "log", "nightly", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-std", "executor-thread", "log", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["log", "std", ] }
 embassy-net = { version = "0.2.0", path = "../../embassy-net", features=[ "std",  "log", "medium-ethernet", "medium-ip", "tcp", "udp", "dns", "dhcpv4", "proto-ipv6"] }
 embassy-net-tuntap = { version = "0.1.0", path = "../../embassy-net-tuntap" }
@@ -23,7 +23,7 @@ nix = "0.26.2"
 clap = { version = "3.0.0-beta.5", features = ["derive"] }
 rand_core = { version = "0.6.3", features = ["std"] }
 heapless = { version = "0.8", default-features = false }
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 [profile.release]
 debug = 2
diff --git a/examples/std/src/bin/net.rs b/examples/std/src/bin/net.rs
index 8d8345057..dad93d0a1 100644
--- a/examples/std/src/bin/net.rs
+++ b/examples/std/src/bin/net.rs
@@ -1,5 +1,3 @@
-#![feature(type_alias_impl_trait)]
 use std::default::Default;
 use clap::Parser;
@@ -12,7 +10,7 @@ use embedded_io_async::Write;
 use heapless::Vec;
 use log::*;
 use rand_core::{OsRng, RngCore};
-use static_cell::{make_static, StaticCell};
+use static_cell::StaticCell;
 #[derive(Parser)]
 #[clap(version = "1.0")]
@@ -54,11 +52,13 @@ async fn main_task(spawner: Spawner) {
    let seed = u64::from_le_bytes(seed);
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<TunTapDevice>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<3>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<3>::new()),
+        RESOURCES.init(StackResources::<3>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/std/src/bin/net_dns.rs b/examples/std/src/bin/net_dns.rs
index 6c19874d5..fca1e076e 100644
--- a/examples/std/src/bin/net_dns.rs
+++ b/examples/std/src/bin/net_dns.rs
@@ -1,5 +1,3 @@
-#![feature(type_alias_impl_trait)]
 use std::default::Default;
 use clap::Parser;
@@ -10,7 +8,7 @@ use embassy_net_tuntap::TunTapDevice;
 use heapless::Vec;
 use log::*;
 use rand_core::{OsRng, RngCore};
-use static_cell::{make_static, StaticCell};
+use static_cell::StaticCell;
 #[derive(Parser)]
 #[clap(version = "1.0")]
@@ -53,11 +51,13 @@ async fn main_task(spawner: Spawner) {
    let seed = u64::from_le_bytes(seed);
    // Init network stack
-    let stack: &Stack<_> = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<TunTapDevice>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<3>> = StaticCell::new();
+    let stack: &Stack<_> = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<3>::new()),
+        RESOURCES.init(StackResources::<3>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/std/src/bin/net_ppp.rs b/examples/std/src/bin/net_ppp.rs
index cee04e558..9ec0ea91f 100644
--- a/examples/std/src/bin/net_ppp.rs
+++ b/examples/std/src/bin/net_ppp.rs
@@ -7,7 +7,6 @@
 //!     ping 192.168.7.10
 //!     nc 192.168.7.10 1234
-#![feature(type_alias_impl_trait)]
 #![allow(async_fn_in_trait)]
 #[path = "../serial_port.rs"]
@@ -25,7 +24,7 @@ use heapless::Vec;
 use log::*;
 use nix::sys::termios;
 use rand_core::{OsRng, RngCore};
-use static_cell::{make_static, StaticCell};
+use static_cell::StaticCell;
 use crate::serial_port::SerialPort;
@@ -88,7 +87,8 @@ async fn main_task(spawner: Spawner) {
    let port = SerialPort::new(opts.device.as_str(), baudrate).unwrap();
    // Init network device
-    let state = make_static!(embassy_net_ppp::State::<4, 4>::new());
+    static STATE: StaticCell<embassy_net_ppp::State<4, 4>> = StaticCell::new();
+    let state = STATE.init(embassy_net_ppp::State::<4, 4>::new());
    let (device, runner) = embassy_net_ppp::new(state);
    // Generate random seed
@@ -97,11 +97,13 @@ async fn main_task(spawner: Spawner) {
    let seed = u64::from_le_bytes(seed);
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<embassy_net_ppp::Device<'static>>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<3>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        Config::default(), // don't configure IP yet
-        make_static!(StackResources::<3>::new()),
+        RESOURCES.init(StackResources::<3>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/std/src/bin/net_udp.rs b/examples/std/src/bin/net_udp.rs
index 98dcc9925..bee91990d 100644
--- a/examples/std/src/bin/net_udp.rs
+++ b/examples/std/src/bin/net_udp.rs
@@ -1,5 +1,3 @@
-#![feature(type_alias_impl_trait)]
 use clap::Parser;
 use embassy_executor::{Executor, Spawner};
 use embassy_net::udp::{PacketMetadata, UdpSocket};
@@ -8,7 +6,7 @@ use embassy_net_tuntap::TunTapDevice;
 use heapless::Vec;
 use log::*;
 use rand_core::{OsRng, RngCore};
-use static_cell::{make_static, StaticCell};
+use static_cell::StaticCell;
 #[derive(Parser)]
 #[clap(version = "1.0")]
@@ -50,11 +48,13 @@ async fn main_task(spawner: Spawner) {
    let seed = u64::from_le_bytes(seed);
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<TunTapDevice>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<3>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<3>::new()),
+        RESOURCES.init(StackResources::<3>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/std/src/bin/serial.rs b/examples/std/src/bin/serial.rs
index 0b289c74d..435089aad 100644
--- a/examples/std/src/bin/serial.rs
+++ b/examples/std/src/bin/serial.rs
@@ -1,5 +1,3 @@
-#![feature(type_alias_impl_trait)]
 #[path = "../serial_port.rs"]
 mod serial_port;
diff --git a/examples/std/src/bin/tcp_accept.rs b/examples/std/src/bin/tcp_accept.rs
index 79fa375cd..00ccd83a7 100644
--- a/examples/std/src/bin/tcp_accept.rs
+++ b/examples/std/src/bin/tcp_accept.rs
@@ -1,5 +1,3 @@
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write as _;
 use std::default::Default;
@@ -13,7 +11,7 @@ use embedded_io_async::Write as _;
 use heapless::Vec;
 use log::*;
 use rand_core::{OsRng, RngCore};
-use static_cell::{make_static, StaticCell};
+use static_cell::StaticCell;
 #[derive(Parser)]
 #[clap(version = "1.0")]
@@ -65,11 +63,13 @@ async fn main_task(spawner: Spawner) {
    let seed = u64::from_le_bytes(seed);
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<TunTapDevice>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<3>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<3>::new()),
+        RESOURCES.init(StackResources::<3>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/std/src/bin/tick.rs b/examples/std/src/bin/tick.rs
index a3f99067e..f23cf3549 100644
--- a/examples/std/src/bin/tick.rs
+++ b/examples/std/src/bin/tick.rs
@@ -1,5 +1,3 @@
-#![feature(type_alias_impl_trait)]
 use embassy_executor::Spawner;
 use embassy_time::Timer;
 use log::*;
diff --git a/examples/stm32c0/Cargo.toml b/examples/stm32c0/Cargo.toml
index 2d831ba5d..0fd3939c6 100644
--- a/examples/stm32c0/Cargo.toml
+++ b/examples/stm32c0/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32c031c6 to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "time-driver-any", "stm32c031c6", "memory-x", "unstable-pac", "exti"]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 defmt = "0.3"
diff --git a/examples/stm32c0/src/bin/blinky.rs b/examples/stm32c0/src/bin/blinky.rs
index cbeb0dee1..90e479aae 100644
--- a/examples/stm32c0/src/bin/blinky.rs
+++ b/examples/stm32c0/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32c0/src/bin/button.rs b/examples/stm32c0/src/bin/button.rs
index 72a3f5cbf..265200132 100644
--- a/examples/stm32c0/src/bin/button.rs
+++ b/examples/stm32c0/src/bin/button.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
@@ -13,7 +12,7 @@ fn main() -> ! {
    let p = embassy_stm32::init(Default::default());
-    let button = Input::new(p.PC13, Pull::Up);
+    let mut button = Input::new(p.PC13, Pull::Up);
    loop {
        if button.is_high() {
diff --git a/examples/stm32c0/src/bin/button_exti.rs b/examples/stm32c0/src/bin/button_exti.rs
index ef32d4c4a..1e970fdd6 100644
--- a/examples/stm32c0/src/bin/button_exti.rs
+++ b/examples/stm32c0/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f0/Cargo.toml b/examples/stm32f0/Cargo.toml
index 2b066d731..9fdc4798a 100644
--- a/examples/stm32f0/Cargo.toml
+++ b/examples/stm32f0/Cargo.toml
@@ -15,9 +15,9 @@ defmt = "0.3"
 defmt-rtt = "0.4"
 panic-probe = "0.3"
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 portable-atomic = { version = "1.5", features = ["unsafe-assume-single-core"] }
 [profile.release]
diff --git a/examples/stm32f0/src/bin/adc.rs b/examples/stm32f0/src/bin/adc.rs
index 96f234402..8fef062b3 100644
--- a/examples/stm32f0/src/bin/adc.rs
+++ b/examples/stm32f0/src/bin/adc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f0/src/bin/blinky.rs b/examples/stm32f0/src/bin/blinky.rs
index 899394546..2572be1bc 100644
--- a/examples/stm32f0/src/bin/blinky.rs
+++ b/examples/stm32f0/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f0/src/bin/button_controlled_blink.rs b/examples/stm32f0/src/bin/button_controlled_blink.rs
index 306df1752..360d153c3 100644
--- a/examples/stm32f0/src/bin/button_controlled_blink.rs
+++ b/examples/stm32f0/src/bin/button_controlled_blink.rs
@@ -2,7 +2,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::sync::atomic::{AtomicU32, Ordering};
diff --git a/examples/stm32f0/src/bin/button_exti.rs b/examples/stm32f0/src/bin/button_exti.rs
index 40c0d5848..ce17c1a48 100644
--- a/examples/stm32f0/src/bin/button_exti.rs
+++ b/examples/stm32f0/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f0/src/bin/hello.rs b/examples/stm32f0/src/bin/hello.rs
index 0f98d9865..ccd6a0a39 100644
--- a/examples/stm32f0/src/bin/hello.rs
+++ b/examples/stm32f0/src/bin/hello.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f0/src/bin/multiprio.rs b/examples/stm32f0/src/bin/multiprio.rs
index 870c7c45b..e49951726 100644
--- a/examples/stm32f0/src/bin/multiprio.rs
+++ b/examples/stm32f0/src/bin/multiprio.rs
@@ -55,7 +55,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
diff --git a/examples/stm32f0/src/bin/wdg.rs b/examples/stm32f0/src/bin/wdg.rs
index b51dee8ee..b974bff91 100644
--- a/examples/stm32f0/src/bin/wdg.rs
+++ b/examples/stm32f0/src/bin/wdg.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f1/Cargo.toml b/examples/stm32f1/Cargo.toml
index f04d41317..c933a4368 100644
--- a/examples/stm32f1/Cargo.toml
+++ b/examples/stm32f1/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32f103c8 to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "stm32f103c8", "unstable-pac", "memory-x", "time-driver-any" ]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
 embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
diff --git a/examples/stm32f1/src/bin/adc.rs b/examples/stm32f1/src/bin/adc.rs
index 1edac3d83..1440460a9 100644
--- a/examples/stm32f1/src/bin/adc.rs
+++ b/examples/stm32f1/src/bin/adc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f1/src/bin/blinky.rs b/examples/stm32f1/src/bin/blinky.rs
index 3425b0536..cc43f85f4 100644
--- a/examples/stm32f1/src/bin/blinky.rs
+++ b/examples/stm32f1/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f1/src/bin/can.rs b/examples/stm32f1/src/bin/can.rs
new file mode 100644
index 000000000..c1c4f8359
--- /dev/null
+++ b/examples/stm32f1/src/bin/can.rs
@@ -0,0 +1,66 @@
+#![no_std]
+#![no_main]
+use defmt::*;
+use embassy_executor::Spawner;
+use embassy_stm32::can::bxcan::filter::Mask32;
+use embassy_stm32::can::bxcan::{Fifo, Frame, Id, StandardId};
+use embassy_stm32::can::{Can, Rx0InterruptHandler, Rx1InterruptHandler, SceInterruptHandler, TxInterruptHandler};
+use embassy_stm32::peripherals::CAN;
+use embassy_stm32::{bind_interrupts, Config};
+use {defmt_rtt as _, panic_probe as _};
+bind_interrupts!(struct Irqs {
+    USB_LP_CAN1_RX0 => Rx0InterruptHandler<CAN>;
+    CAN1_RX1 => Rx1InterruptHandler<CAN>;
+    CAN1_SCE => SceInterruptHandler<CAN>;
+    USB_HP_CAN1_TX => TxInterruptHandler<CAN>;
+});
+// This example is configured to work with real CAN transceivers on B8/B9.
+// See other examples for loopback.
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let p = embassy_stm32::init(Config::default());
+    // Set alternate pin mapping to B8/B9
+    embassy_stm32::pac::AFIO.mapr().modify(|w| w.set_can1_remap(2));
+    let mut can = Can::new(p.CAN, p.PB8, p.PB9, Irqs);
+    can.as_mut()
+        .modify_filters()
+        .enable_bank(0, Fifo::Fifo0, Mask32::accept_all());
+    can.as_mut()
+        .modify_config()
+        .set_loopback(false)
+        .set_silent(false)
+        .leave_disabled();
+    can.set_bitrate(250_000);
+    can.enable().await;
+    let mut i: u8 = 0;
+    loop {
+        let tx_frame = Frame::new_data(unwrap!(StandardId::new(i as _)), [i]);
+        can.write(&tx_frame).await;
+        match can.read().await {
+            Ok(env) => match env.frame.id() {
+                Id::Extended(id) => {
+                    defmt::println!("Extended Frame id={:x}", id.as_raw());
+                }
+                Id::Standard(id) => {
+                    defmt::println!("Standard Frame id={:x}", id.as_raw());
+                }
+            },
+            Err(err) => {
+                defmt::println!("Error {}", err);
+            }
+        }
+        i += 1;
+    }
+}
diff --git a/examples/stm32f1/src/bin/hello.rs b/examples/stm32f1/src/bin/hello.rs
index e63bcaae0..7b761ecc1 100644
--- a/examples/stm32f1/src/bin/hello.rs
+++ b/examples/stm32f1/src/bin/hello.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f1/src/bin/usb_serial.rs b/examples/stm32f1/src/bin/usb_serial.rs
index 31519555f..e28381893 100644
--- a/examples/stm32f1/src/bin/usb_serial.rs
+++ b/examples/stm32f1/src/bin/usb_serial.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{panic, *};
 use embassy_executor::Spawner;
diff --git a/examples/stm32f2/Cargo.toml b/examples/stm32f2/Cargo.toml
index 66cc1e15b..eaaadeec5 100644
--- a/examples/stm32f2/Cargo.toml
+++ b/examples/stm32f2/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32f207zg to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "stm32f207zg", "unstable-pac", "memory-x", "time-driver-any", "exti"]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 defmt = "0.3"
diff --git a/examples/stm32f2/src/bin/blinky.rs b/examples/stm32f2/src/bin/blinky.rs
index f6d7a0005..d9833ba8b 100644
--- a/examples/stm32f2/src/bin/blinky.rs
+++ b/examples/stm32f2/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f2/src/bin/pll.rs b/examples/stm32f2/src/bin/pll.rs
index aae7637dc..e32f283d1 100644
--- a/examples/stm32f2/src/bin/pll.rs
+++ b/examples/stm32f2/src/bin/pll.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::convert::TryFrom;
diff --git a/examples/stm32f3/Cargo.toml b/examples/stm32f3/Cargo.toml
index ed1367858..d5ab0b25a 100644
--- a/examples/stm32f3/Cargo.toml
+++ b/examples/stm32f3/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32f303ze to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "stm32f303ze", "unstable-pac", "memory-x", "time-driver-any", "exti"]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
 embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
@@ -24,7 +24,7 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
 heapless = { version = "0.8", default-features = false }
 nb = "1.0.0"
 embedded-storage = "0.3.1"
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 [profile.release]
 debug = 2
diff --git a/examples/stm32f3/src/bin/blinky.rs b/examples/stm32f3/src/bin/blinky.rs
index e71031b30..0ea10522d 100644
--- a/examples/stm32f3/src/bin/blinky.rs
+++ b/examples/stm32f3/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f3/src/bin/button.rs b/examples/stm32f3/src/bin/button.rs
index b55bf3901..2cd356787 100644
--- a/examples/stm32f3/src/bin/button.rs
+++ b/examples/stm32f3/src/bin/button.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
@@ -13,7 +12,7 @@ fn main() -> ! {
    let p = embassy_stm32::init(Default::default());
-    let button = Input::new(p.PA0, Pull::Down);
+    let mut button = Input::new(p.PA0, Pull::Down);
    let mut led1 = Output::new(p.PE9, Level::High, Speed::Low);
    let mut led2 = Output::new(p.PE15, Level::High, Speed::Low);
diff --git a/examples/stm32f3/src/bin/button_events.rs b/examples/stm32f3/src/bin/button_events.rs
index 9df6d680d..2f7da4ef5 100644
--- a/examples/stm32f3/src/bin/button_events.rs
+++ b/examples/stm32f3/src/bin/button_events.rs
@@ -8,7 +8,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f3/src/bin/button_exti.rs b/examples/stm32f3/src/bin/button_exti.rs
index 1266778c1..86ff68492 100644
--- a/examples/stm32f3/src/bin/button_exti.rs
+++ b/examples/stm32f3/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f3/src/bin/flash.rs b/examples/stm32f3/src/bin/flash.rs
index 236fb36c1..28125697d 100644
--- a/examples/stm32f3/src/bin/flash.rs
+++ b/examples/stm32f3/src/bin/flash.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/stm32f3/src/bin/hello.rs b/examples/stm32f3/src/bin/hello.rs
index b3285f3c1..fd54da53d 100644
--- a/examples/stm32f3/src/bin/hello.rs
+++ b/examples/stm32f3/src/bin/hello.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f3/src/bin/multiprio.rs b/examples/stm32f3/src/bin/multiprio.rs
index 74f3bb1c5..328447210 100644
--- a/examples/stm32f3/src/bin/multiprio.rs
+++ b/examples/stm32f3/src/bin/multiprio.rs
@@ -55,7 +55,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
diff --git a/examples/stm32f3/src/bin/spi_dma.rs b/examples/stm32f3/src/bin/spi_dma.rs
index a27c1d547..54498d53d 100644
--- a/examples/stm32f3/src/bin/spi_dma.rs
+++ b/examples/stm32f3/src/bin/spi_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
 use core::str::from_utf8;
diff --git a/examples/stm32f3/src/bin/usart_dma.rs b/examples/stm32f3/src/bin/usart_dma.rs
index ce8c212ae..5234e53b9 100644
--- a/examples/stm32f3/src/bin/usart_dma.rs
+++ b/examples/stm32f3/src/bin/usart_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
diff --git a/examples/stm32f3/src/bin/usb_serial.rs b/examples/stm32f3/src/bin/usb_serial.rs
index d5d068d62..cf9ecedfa 100644
--- a/examples/stm32f3/src/bin/usb_serial.rs
+++ b/examples/stm32f3/src/bin/usb_serial.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{panic, *};
 use embassy_executor::Spawner;
diff --git a/examples/stm32f334/Cargo.toml b/examples/stm32f334/Cargo.toml
index 320cf7d7b..b29a08e7c 100644
--- a/examples/stm32f334/Cargo.toml
+++ b/examples/stm32f334/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2.0", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "stm32f334r8", "unstable-pac", "memory-x", "time-driver-any", "exti"]  }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
@@ -23,4 +23,4 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
 heapless = { version = "0.8", default-features = false }
 nb = "1.0.0"
 embedded-storage = "0.3.1"
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
diff --git a/examples/stm32f334/src/bin/adc.rs b/examples/stm32f334/src/bin/adc.rs
index f259135d2..063ee9dac 100644
--- a/examples/stm32f334/src/bin/adc.rs
+++ b/examples/stm32f334/src/bin/adc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f334/src/bin/button.rs b/examples/stm32f334/src/bin/button.rs
index 501fb080c..256f9a44a 100644
--- a/examples/stm32f334/src/bin/button.rs
+++ b/examples/stm32f334/src/bin/button.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f334/src/bin/hello.rs b/examples/stm32f334/src/bin/hello.rs
index b3285f3c1..fd54da53d 100644
--- a/examples/stm32f334/src/bin/hello.rs
+++ b/examples/stm32f334/src/bin/hello.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f334/src/bin/opamp.rs b/examples/stm32f334/src/bin/opamp.rs
index 10e7b3543..850a0e335 100644
--- a/examples/stm32f334/src/bin/opamp.rs
+++ b/examples/stm32f334/src/bin/opamp.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f334/src/bin/pwm.rs b/examples/stm32f334/src/bin/pwm.rs
index 8040c3f18..c149cad92 100644
--- a/examples/stm32f334/src/bin/pwm.rs
+++ b/examples/stm32f334/src/bin/pwm.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/Cargo.toml b/examples/stm32f4/Cargo.toml
index 6ea0018cd..a74e0f674 100644
--- a/examples/stm32f4/Cargo.toml
+++ b/examples/stm32f4/Cargo.toml
@@ -6,9 +6,9 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 # Change stm32f429zi to your chip name, if necessary.
-embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "stm32f429zi", "unstable-pac", "memory-x", "time-driver-any", "exti", "embedded-sdmmc", "chrono"]  }
+embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "stm32f429zi", "unstable-pac", "memory-x", "time-driver-any", "exti", "chrono"]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "executor-interrupt", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt" ] }
 embassy-net = { version = "0.2.0", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", ] }
@@ -27,7 +27,7 @@ heapless = { version = "0.8", default-features = false }
 nb = "1.0.0"
 embedded-storage = "0.3.1"
 micromath = "2.0.0"
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 chrono = { version = "^0.4", default-features = false}
 [profile.release]
diff --git a/examples/stm32f4/src/bin/adc.rs b/examples/stm32f4/src/bin/adc.rs
index f19328727..699c29c05 100644
--- a/examples/stm32f4/src/bin/adc.rs
+++ b/examples/stm32f4/src/bin/adc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m::prelude::_embedded_hal_blocking_delay_DelayUs;
 use defmt::*;
diff --git a/examples/stm32f4/src/bin/blinky.rs b/examples/stm32f4/src/bin/blinky.rs
index 4bfc5a50d..31cce8225 100644
--- a/examples/stm32f4/src/bin/blinky.rs
+++ b/examples/stm32f4/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/button.rs b/examples/stm32f4/src/bin/button.rs
index b13e64531..ad30a56a2 100644
--- a/examples/stm32f4/src/bin/button.rs
+++ b/examples/stm32f4/src/bin/button.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
@@ -13,7 +12,7 @@ fn main() -> ! {
    let p = embassy_stm32::init(Default::default());
-    let button = Input::new(p.PC13, Pull::Down);
+    let mut button = Input::new(p.PC13, Pull::Down);
    let mut led1 = Output::new(p.PB0, Level::High, Speed::Low);
    let _led2 = Output::new(p.PB7, Level::High, Speed::Low);
    let mut led3 = Output::new(p.PB14, Level::High, Speed::Low);
diff --git a/examples/stm32f4/src/bin/button_exti.rs b/examples/stm32f4/src/bin/button_exti.rs
index dfe587d41..67751187d 100644
--- a/examples/stm32f4/src/bin/button_exti.rs
+++ b/examples/stm32f4/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/can.rs b/examples/stm32f4/src/bin/can.rs
index 20ce4edce..d074b4265 100644
--- a/examples/stm32f4/src/bin/can.rs
+++ b/examples/stm32f4/src/bin/can.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/dac.rs b/examples/stm32f4/src/bin/dac.rs
index 8f14d6078..9c7754c4f 100644
--- a/examples/stm32f4/src/bin/dac.rs
+++ b/examples/stm32f4/src/bin/dac.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/eth.rs b/examples/stm32f4/src/bin/eth.rs
index 088d83c06..7f5c8fdb1 100644
--- a/examples/stm32f4/src/bin/eth.rs
+++ b/examples/stm32f4/src/bin/eth.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -14,7 +13,7 @@ use embassy_stm32::time::Hertz;
 use embassy_stm32::{bind_interrupts, eth, peripherals, rng, Config};
 use embassy_time::Timer;
 use embedded_io_async::Write;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -63,8 +62,9 @@ async fn main(spawner: Spawner) -> ! {
    let mac_addr = [0x00, 0x00, 0xDE, 0xAD, 0xBE, 0xEF];
+    static PACKETS: StaticCell<PacketQueue<16, 16>> = StaticCell::new();
    let device = Ethernet::new(
-        make_static!(PacketQueue::<16, 16>::new()),
+        PACKETS.init(PacketQueue::<16, 16>::new()),
        p.ETH,
        Irqs,
        p.PA1,
@@ -88,11 +88,13 @@ async fn main(spawner: Spawner) -> ! {
    //});
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/stm32f4/src/bin/flash.rs b/examples/stm32f4/src/bin/flash.rs
index 93c54e943..1e8cabab4 100644
--- a/examples/stm32f4/src/bin/flash.rs
+++ b/examples/stm32f4/src/bin/flash.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
@@ -31,7 +30,7 @@ fn test_flash(f: &mut Flash<'_, Blocking>, offset: u32, size: u32) {
    info!("Reading...");
    let mut buf = [0u8; 32];
-    unwrap!(f.read(offset, &mut buf));
+    unwrap!(f.blocking_read(offset, &mut buf));
    info!("Read: {=[u8]:x}", buf);
    info!("Erasing...");
@@ -39,7 +38,7 @@ fn test_flash(f: &mut Flash<'_, Blocking>, offset: u32, size: u32) {
    info!("Reading...");
    let mut buf = [0u8; 32];
-    unwrap!(f.read(offset, &mut buf));
+    unwrap!(f.blocking_read(offset, &mut buf));
    info!("Read after erase: {=[u8]:x}", buf);
    info!("Writing...");
@@ -53,7 +52,7 @@ fn test_flash(f: &mut Flash<'_, Blocking>, offset: u32, size: u32) {
    info!("Reading...");
    let mut buf = [0u8; 32];
-    unwrap!(f.read(offset, &mut buf));
+    unwrap!(f.blocking_read(offset, &mut buf));
    info!("Read: {=[u8]:x}", buf);
    assert_eq!(
        &buf[..],
diff --git a/examples/stm32f4/src/bin/flash_async.rs b/examples/stm32f4/src/bin/flash_async.rs
index f0a65a725..493a536f3 100644
--- a/examples/stm32f4/src/bin/flash_async.rs
+++ b/examples/stm32f4/src/bin/flash_async.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
@@ -48,7 +47,7 @@ async fn test_flash<'a>(f: &mut Flash<'a>, offset: u32, size: u32) {
    info!("Reading...");
    let mut buf = [0u8; 32];
-    unwrap!(f.read(offset, &mut buf));
+    unwrap!(f.blocking_read(offset, &mut buf));
    info!("Read: {=[u8]:x}", buf);
    info!("Erasing...");
@@ -56,7 +55,7 @@ async fn test_flash<'a>(f: &mut Flash<'a>, offset: u32, size: u32) {
    info!("Reading...");
    let mut buf = [0u8; 32];
-    unwrap!(f.read(offset, &mut buf));
+    unwrap!(f.blocking_read(offset, &mut buf));
    info!("Read after erase: {=[u8]:x}", buf);
    info!("Writing...");
@@ -73,7 +72,7 @@ async fn test_flash<'a>(f: &mut Flash<'a>, offset: u32, size: u32) {
    info!("Reading...");
    let mut buf = [0u8; 32];
-    unwrap!(f.read(offset, &mut buf));
+    unwrap!(f.blocking_read(offset, &mut buf));
    info!("Read: {=[u8]:x}", buf);
    assert_eq!(
        &buf[..],
diff --git a/examples/stm32f4/src/bin/hello.rs b/examples/stm32f4/src/bin/hello.rs
index a2a287110..3c295612c 100644
--- a/examples/stm32f4/src/bin/hello.rs
+++ b/examples/stm32f4/src/bin/hello.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/i2c.rs b/examples/stm32f4/src/bin/i2c.rs
index 4f4adde28..4b5da774d 100644
--- a/examples/stm32f4/src/bin/i2c.rs
+++ b/examples/stm32f4/src/bin/i2c.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/i2c_async.rs b/examples/stm32f4/src/bin/i2c_async.rs
index 9f59e4d41..90d11d4b4 100644
--- a/examples/stm32f4/src/bin/i2c_async.rs
+++ b/examples/stm32f4/src/bin/i2c_async.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 // Example originally designed for stm32f411ceu6 reading an A1454 hall effect sensor on I2C1
 // DMA peripherals changed to compile for stm32f429zi, for the CI.
diff --git a/examples/stm32f4/src/bin/i2c_comparison.rs b/examples/stm32f4/src/bin/i2c_comparison.rs
index 6d23c0ed8..30cfbdf57 100644
--- a/examples/stm32f4/src/bin/i2c_comparison.rs
+++ b/examples/stm32f4/src/bin/i2c_comparison.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 // Example originally designed for stm32f411ceu6 with three A1454 hall effect sensors, connected to I2C1, 2 and 3
 // on the pins referenced in the peripheral definitions.
diff --git a/examples/stm32f4/src/bin/i2s_dma.rs b/examples/stm32f4/src/bin/i2s_dma.rs
index e8d7b5f77..97a04b2aa 100644
--- a/examples/stm32f4/src/bin/i2s_dma.rs
+++ b/examples/stm32f4/src/bin/i2s_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
diff --git a/examples/stm32f4/src/bin/mco.rs b/examples/stm32f4/src/bin/mco.rs
index 3315e7652..eb7bb6261 100644
--- a/examples/stm32f4/src/bin/mco.rs
+++ b/examples/stm32f4/src/bin/mco.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/multiprio.rs b/examples/stm32f4/src/bin/multiprio.rs
index 74f3bb1c5..328447210 100644
--- a/examples/stm32f4/src/bin/multiprio.rs
+++ b/examples/stm32f4/src/bin/multiprio.rs
@@ -55,7 +55,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
diff --git a/examples/stm32f4/src/bin/pwm.rs b/examples/stm32f4/src/bin/pwm.rs
index 8e41d0e78..8844a9f0e 100644
--- a/examples/stm32f4/src/bin/pwm.rs
+++ b/examples/stm32f4/src/bin/pwm.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/pwm_complementary.rs b/examples/stm32f4/src/bin/pwm_complementary.rs
index d925f26d9..161f43c48 100644
--- a/examples/stm32f4/src/bin/pwm_complementary.rs
+++ b/examples/stm32f4/src/bin/pwm_complementary.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/rtc.rs b/examples/stm32f4/src/bin/rtc.rs
index 44b4303c0..abab07b6b 100644
--- a/examples/stm32f4/src/bin/rtc.rs
+++ b/examples/stm32f4/src/bin/rtc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use chrono::{NaiveDate, NaiveDateTime};
 use defmt::*;
diff --git a/examples/stm32f4/src/bin/sdmmc.rs b/examples/stm32f4/src/bin/sdmmc.rs
index 91747b2d5..66e4e527c 100644
--- a/examples/stm32f4/src/bin/sdmmc.rs
+++ b/examples/stm32f4/src/bin/sdmmc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/spi.rs b/examples/stm32f4/src/bin/spi.rs
index 0919e9874..dc9141c62 100644
--- a/examples/stm32f4/src/bin/spi.rs
+++ b/examples/stm32f4/src/bin/spi.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
diff --git a/examples/stm32f4/src/bin/spi_dma.rs b/examples/stm32f4/src/bin/spi_dma.rs
index f291f7dba..7249c831a 100644
--- a/examples/stm32f4/src/bin/spi_dma.rs
+++ b/examples/stm32f4/src/bin/spi_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
 use core::str::from_utf8;
diff --git a/examples/stm32f4/src/bin/usart.rs b/examples/stm32f4/src/bin/usart.rs
index 45e94715f..40d9d70f1 100644
--- a/examples/stm32f4/src/bin/usart.rs
+++ b/examples/stm32f4/src/bin/usart.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
diff --git a/examples/stm32f4/src/bin/usart_buffered.rs b/examples/stm32f4/src/bin/usart_buffered.rs
index 71abc2893..c99807f11 100644
--- a/examples/stm32f4/src/bin/usart_buffered.rs
+++ b/examples/stm32f4/src/bin/usart_buffered.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/usart_dma.rs b/examples/stm32f4/src/bin/usart_dma.rs
index dca25a78c..dd6de599c 100644
--- a/examples/stm32f4/src/bin/usart_dma.rs
+++ b/examples/stm32f4/src/bin/usart_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
diff --git a/examples/stm32f4/src/bin/usb_ethernet.rs b/examples/stm32f4/src/bin/usb_ethernet.rs
index 6bf5b1cba..a196259a8 100644
--- a/examples/stm32f4/src/bin/usb_ethernet.rs
+++ b/examples/stm32f4/src/bin/usb_ethernet.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -14,7 +13,7 @@ use embassy_usb::class::cdc_ncm::embassy_net::{Device, Runner, State as NetState
 use embassy_usb::class::cdc_ncm::{CdcNcmClass, State};
 use embassy_usb::{Builder, UsbDevice};
 use embedded_io_async::Write;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 type UsbDriver = Driver<'static, embassy_stm32::peripherals::USB_OTG_FS>;
@@ -68,7 +67,8 @@ async fn main(spawner: Spawner) {
    let p = embassy_stm32::init(config);
    // Create the driver, from the HAL.
-    let ep_out_buffer = &mut make_static!([0; 256])[..];
+    static OUTPUT_BUFFER: StaticCell<[u8; 256]> = StaticCell::new();
+    let ep_out_buffer = &mut OUTPUT_BUFFER.init([0; 256])[..];
    let mut config = embassy_stm32::usb_otg::Config::default();
    config.vbus_detection = true;
    let driver = Driver::new_fs(p.USB_OTG_FS, Irqs, p.PA12, p.PA11, ep_out_buffer, config);
@@ -88,14 +88,18 @@ async fn main(spawner: Spawner) {
    config.device_protocol = 0x01;
    // Create embassy-usb DeviceBuilder using the driver and config.
+    static DEVICE_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static CONFIG_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static BOS_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static CONTROL_BUF: StaticCell<[u8; 128]> = StaticCell::new();
    let mut builder = Builder::new(
        driver,
        config,
-        &mut make_static!([0; 256])[..],
+        &mut DEVICE_DESC.init([0; 256])[..],
-        &mut make_static!([0; 256])[..],
+        &mut CONFIG_DESC.init([0; 256])[..],
-        &mut make_static!([0; 256])[..],
+        &mut BOS_DESC.init([0; 256])[..],
        &mut [], // no msos descriptors
-        &mut make_static!([0; 128])[..],
+        &mut CONTROL_BUF.init([0; 128])[..],
    );
    // Our MAC addr.
@@ -104,14 +108,16 @@ async fn main(spawner: Spawner) {
    let host_mac_addr = [0x88, 0x88, 0x88, 0x88, 0x88, 0x88];
    // Create classes on the builder.
-    let class = CdcNcmClass::new(&mut builder, make_static!(State::new()), host_mac_addr, 64);
+    static STATE: StaticCell<State> = StaticCell::new();
+    let class = CdcNcmClass::new(&mut builder, STATE.init(State::new()), host_mac_addr, 64);
    // Build the builder.
    let usb = builder.build();
    unwrap!(spawner.spawn(usb_task(usb)));
-    let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
+    static NET_STATE: StaticCell<NetState<MTU, 4, 4>> = StaticCell::new();
+    let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(NET_STATE.init(NetState::new()), our_mac_addr);
    unwrap!(spawner.spawn(usb_ncm_task(runner)));
    let config = embassy_net::Config::dhcpv4(Default::default());
@@ -128,11 +134,13 @@ async fn main(spawner: Spawner) {
    let seed = u64::from_le_bytes(seed);
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device<'static, MTU>>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    unwrap!(spawner.spawn(net_task(stack)));
diff --git a/examples/stm32f4/src/bin/usb_raw.rs b/examples/stm32f4/src/bin/usb_raw.rs
index 719b22bb9..afff55187 100644
--- a/examples/stm32f4/src/bin/usb_raw.rs
+++ b/examples/stm32f4/src/bin/usb_raw.rs
@@ -48,7 +48,6 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/usb_serial.rs b/examples/stm32f4/src/bin/usb_serial.rs
index e2ccc9142..58d994a61 100644
--- a/examples/stm32f4/src/bin/usb_serial.rs
+++ b/examples/stm32f4/src/bin/usb_serial.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{panic, *};
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/wdt.rs b/examples/stm32f4/src/bin/wdt.rs
index 0443b61c5..ea27ebce0 100644
--- a/examples/stm32f4/src/bin/wdt.rs
+++ b/examples/stm32f4/src/bin/wdt.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f4/src/bin/ws2812_pwm_dma.rs b/examples/stm32f4/src/bin/ws2812_pwm_dma.rs
new file mode 100644
index 000000000..4458b643f
--- /dev/null
+++ b/examples/stm32f4/src/bin/ws2812_pwm_dma.rs
@@ -0,0 +1,150 @@
+// Configure TIM3 in PWM mode, and start DMA Transfer(s) to send color data into ws2812.
+// We assume the DIN pin of ws2812 connect to GPIO PB4, and ws2812 is properly powered.
+//
+// The idea is that the data rate of ws2812 is 800 kHz, and it use different duty ratio to represent bit 0 and bit 1.
+// Thus we can set TIM overflow at 800 kHz, and let TIM Update Event trigger a DMA transfer, then let DMA change CCR value,
+// such that pwm duty ratio meet the bit representation of ws2812.
+//
+// You may want to modify TIM CCR with Cortex core directly,
+// but according to my test, Cortex core will need to run far more than 100 MHz to catch up with TIM.
+// Thus we need to use a DMA.
+//
+// This demo is a combination of HAL, PAC, and manually invoke `dma::Transfer`.
+// If you need a simpler way to control ws2812, you may want to take a look at `ws2812_spi.rs` file, which make use of SPI.
+//
+// Warning:
+// DO NOT stare at ws2812 directy (especially after each MCU Reset), its (max) brightness could easily make your eyes feel burn.
+#![no_std]
+#![no_main]
+use embassy_executor::Spawner;
+use embassy_stm32::gpio::OutputType;
+use embassy_stm32::pac;
+use embassy_stm32::time::khz;
+use embassy_stm32::timer::simple_pwm::{PwmPin, SimplePwm};
+use embassy_stm32::timer::{Channel, CountingMode};
+use embassy_time::{Duration, Ticker, Timer};
+use {defmt_rtt as _, panic_probe as _};
+#[embassy_executor::main]
+async fn main(_spawner: Spawner) {
+    let mut device_config = embassy_stm32::Config::default();
+    // set SYSCLK/HCLK/PCLK2 to 20 MHz, thus each tick is 0.05 us,
+    // and ws2812 timings are integer multiples of 0.05 us
+    {
+        use embassy_stm32::rcc::*;
+        use embassy_stm32::time::*;
+        device_config.enable_debug_during_sleep = true;
+        device_config.rcc.hse = Some(Hse {
+            freq: mhz(12),
+            mode: HseMode::Oscillator,
+        });
+        device_config.rcc.pll_src = PllSource::HSE;
+        device_config.rcc.pll = Some(Pll {
+            prediv: PllPreDiv::DIV6,
+            mul: PllMul::MUL80,
+            divp: Some(PllPDiv::DIV8),
+            divq: None,
+            divr: None,
+        });
+        device_config.rcc.sys = Sysclk::PLL1_P;
+    }
+    let mut dp = embassy_stm32::init(device_config);
+    let mut ws2812_pwm = SimplePwm::new(
+        dp.TIM3,
+        Some(PwmPin::new_ch1(dp.PB4, OutputType::PushPull)),
+        None,
+        None,
+        None,
+        khz(800), // data rate of ws2812
+        CountingMode::EdgeAlignedUp,
+    );
+    // construct ws2812 non-return-to-zero (NRZ) code bit by bit
+    // ws2812 only need 24 bits for each LED, but we add one bit more to keep PWM output low
+    let max_duty = ws2812_pwm.get_max_duty();
+    let n0 = 8 * max_duty / 25; // ws2812 Bit 0 high level timing
+    let n1 = 2 * n0; // ws2812 Bit 1 high level timing
+    let turn_off = [
+        n0, n0, n0, n0, n0, n0, n0, n0, // Green
+        n0, n0, n0, n0, n0, n0, n0, n0, // Red
+        n0, n0, n0, n0, n0, n0, n0, n0, // Blue
+        0,  // keep PWM output low after a transfer
+    ];
+    let dim_white = [
+        n0, n0, n0, n0, n0, n0, n1, n0, // Green
+        n0, n0, n0, n0, n0, n0, n1, n0, // Red
+        n0, n0, n0, n0, n0, n0, n1, n0, // Blue
+        0,  // keep PWM output low after a transfer
+    ];
+    let color_list = &[&turn_off, &dim_white];
+    let pwm_channel = Channel::Ch1;
+    // PAC level hacking, enable output compare preload
+    // keep output waveform integrity
+    pac::TIM3
+        .ccmr_output(pwm_channel.index())
+        .modify(|v| v.set_ocpe(0, true));
+    // make sure PWM output keep low on first start
+    ws2812_pwm.set_duty(pwm_channel, 0);
+    {
+        use embassy_stm32::dma::{Burst, FifoThreshold, Transfer, TransferOptions};
+        // configure FIFO and MBURST of DMA, to minimize DMA occupation on AHB/APB
+        let mut dma_transfer_option = TransferOptions::default();
+        dma_transfer_option.fifo_threshold = Some(FifoThreshold::Full);
+        dma_transfer_option.mburst = Burst::Incr8;
+        // flip color at 2 Hz
+        let mut ticker = Ticker::every(Duration::from_millis(500));
+        loop {
+            for &color in color_list {
+                // start PWM output
+                ws2812_pwm.enable(pwm_channel);
+                // PAC level hacking, enable timer-update-event trigger DMA
+                pac::TIM3.dier().modify(|v| v.set_ude(true));
+                unsafe {
+                    Transfer::new_write(
+                        // with &mut, we can easily reuse same DMA channel multiple times
+                        &mut dp.DMA1_CH2,
+                        5,
+                        color,
+                        pac::TIM3.ccr(pwm_channel.index()).as_ptr() as *mut _,
+                        dma_transfer_option,
+                    )
+                    .await;
+                    // Turn off timer-update-event trigger DMA as soon as possible.
+                    // Then clean the FIFO Error Flag if set.
+                    pac::TIM3.dier().modify(|v| v.set_ude(false));
+                    if pac::DMA1.isr(0).read().feif(2) {
+                        pac::DMA1.ifcr(0).write(|v| v.set_feif(2, true));
+                    }
+                    // ws2812 need at least 50 us low level input to confirm the input data and change it's state
+                    Timer::after_micros(50).await;
+                }
+                // stop PWM output for saving some energy
+                ws2812_pwm.disable(pwm_channel);
+                // wait until ticker tick
+                ticker.next().await;
+            }
+        }
+    }
+}
diff --git a/examples/stm32f4/src/bin/ws2812_spi.rs b/examples/stm32f4/src/bin/ws2812_spi.rs
new file mode 100644
index 000000000..a280a3b77
--- /dev/null
+++ b/examples/stm32f4/src/bin/ws2812_spi.rs
@@ -0,0 +1,95 @@
+// Mimic PWM with SPI, to control ws2812
+// We assume the DIN pin of ws2812 connect to GPIO PB5, and ws2812 is properly powered.
+//
+// The idea is that the data rate of ws2812 is 800 kHz, and it use different duty ratio to represent bit 0 and bit 1.
+// Thus we can adjust SPI to send each *round* of data at 800 kHz, and in each *round*, we can adjust each *bit* to mimic 2 different PWM waveform.
+// such that the output waveform meet the bit representation of ws2812.
+//
+// If you want to save SPI for other purpose, you may want to take a look at `ws2812_pwm_dma.rs` file, which make use of TIM and DMA.
+//
+// Warning:
+// DO NOT stare at ws2812 directy (especially after each MCU Reset), its (max) brightness could easily make your eyes feel burn.
+#![no_std]
+#![no_main]
+use embassy_stm32::time::khz;
+use embassy_stm32::{dma, spi};
+use embassy_time::{Duration, Ticker, Timer};
+use {defmt_rtt as _, panic_probe as _};
+// we use 16 bit data frame format of SPI, to let timing as accurate as possible.
+// thanks to loose tolerance of ws2812 timing, you can also use 8 bit data frame format, thus you will need to adjust the bit representation.
+const N0: u16 = 0b1111100000000000u16; // ws2812 Bit 0 high level timing
+const N1: u16 = 0b1111111111000000u16; // ws2812 Bit 1 high level timing
+// ws2812 only need 24 bits for each LED,
+// but we add one bit more to keep SPI output low at the end
+static TURN_OFF: [u16; 25] = [
+    N0, N0, N0, N0, N0, N0, N0, N0, // Green
+    N0, N0, N0, N0, N0, N0, N0, N0, // Red
+    N0, N0, N0, N0, N0, N0, N0, N0, // Blue
+    0,  // keep SPI output low after last bit
+];
+static DIM_WHITE: [u16; 25] = [
+    N0, N0, N0, N0, N0, N0, N1, N0, // Green
+    N0, N0, N0, N0, N0, N0, N1, N0, // Red
+    N0, N0, N0, N0, N0, N0, N1, N0, // Blue
+    0,  // keep SPI output low after last bit
+];
+static COLOR_LIST: &[&[u16]] = &[&TURN_OFF, &DIM_WHITE];
+#[embassy_executor::main]
+async fn main(_spawner: embassy_executor::Spawner) {
+    let mut device_config = embassy_stm32::Config::default();
+    // Since we use 16 bit SPI, and we need each round 800 kHz,
+    // thus SPI output speed should be 800 kHz * 16 = 12.8 MHz, and APB clock should be 2 * 12.8 MHz = 25.6 MHz.
+    //
+    // As for my setup, with 12 MHz HSE, I got 25.5 MHz SYSCLK, which is slightly slower, but it's ok for ws2812.
+    {
+        use embassy_stm32::rcc::{Hse, HseMode, Pll, PllMul, PllPDiv, PllPreDiv, PllSource, Sysclk};
+        use embassy_stm32::time::mhz;
+        device_config.enable_debug_during_sleep = true;
+        device_config.rcc.hse = Some(Hse {
+            freq: mhz(12),
+            mode: HseMode::Oscillator,
+        });
+        device_config.rcc.pll_src = PllSource::HSE;
+        device_config.rcc.pll = Some(Pll {
+            prediv: PllPreDiv::DIV6,
+            mul: PllMul::MUL102,
+            divp: Some(PllPDiv::DIV8),
+            divq: None,
+            divr: None,
+        });
+        device_config.rcc.sys = Sysclk::PLL1_P;
+    }
+    let dp = embassy_stm32::init(device_config);
+    // Set SPI output speed.
+    // It's ok to blindly set frequency to 12800 kHz, the hal crate will take care of the SPI CR1 BR field.
+    // And in my case, the real bit rate will be 25.5 MHz / 2 = 12_750 kHz
+    let mut spi_config = spi::Config::default();
+    spi_config.frequency = khz(12_800);
+    // Since we only output waveform, then the Rx and Sck and RxDma it is not considered
+    let mut ws2812_spi = spi::Spi::new_txonly_nosck(dp.SPI1, dp.PB5, dp.DMA2_CH3, dma::NoDma, spi_config);
+    // flip color at 2 Hz
+    let mut ticker = Ticker::every(Duration::from_millis(500));
+    loop {
+        for &color in COLOR_LIST {
+            ws2812_spi.write(color).await.unwrap();
+            // ws2812 need at least 50 us low level input to confirm the input data and change it's state
+            Timer::after_micros(50).await;
+            // wait until ticker tick
+            ticker.next().await;
+        }
+    }
+}
diff --git a/examples/stm32f7/Cargo.toml b/examples/stm32f7/Cargo.toml
index 4cca0d93c..b76a848a8 100644
--- a/examples/stm32f7/Cargo.toml
+++ b/examples/stm32f7/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32f767zi to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32f767zi", "memory-x", "unstable-pac", "time-driver-any", "exti"]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-net = { version = "0.2.0", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet"] }
 embedded-io-async = { version = "0.6.1" }
@@ -27,7 +27,7 @@ nb = "1.0.0"
 rand_core = "0.6.3"
 critical-section = "1.1"
 embedded-storage = "0.3.1"
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 [profile.release]
 debug = 2
diff --git a/examples/stm32f7/src/bin/adc.rs b/examples/stm32f7/src/bin/adc.rs
index 48c59eaf0..f8d7b691f 100644
--- a/examples/stm32f7/src/bin/adc.rs
+++ b/examples/stm32f7/src/bin/adc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f7/src/bin/blinky.rs b/examples/stm32f7/src/bin/blinky.rs
index 4bfc5a50d..31cce8225 100644
--- a/examples/stm32f7/src/bin/blinky.rs
+++ b/examples/stm32f7/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f7/src/bin/button.rs b/examples/stm32f7/src/bin/button.rs
index b13e64531..ad30a56a2 100644
--- a/examples/stm32f7/src/bin/button.rs
+++ b/examples/stm32f7/src/bin/button.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
@@ -13,7 +12,7 @@ fn main() -> ! {
    let p = embassy_stm32::init(Default::default());
-    let button = Input::new(p.PC13, Pull::Down);
+    let mut button = Input::new(p.PC13, Pull::Down);
    let mut led1 = Output::new(p.PB0, Level::High, Speed::Low);
    let _led2 = Output::new(p.PB7, Level::High, Speed::Low);
    let mut led3 = Output::new(p.PB14, Level::High, Speed::Low);
diff --git a/examples/stm32f7/src/bin/button_exti.rs b/examples/stm32f7/src/bin/button_exti.rs
index dfe587d41..67751187d 100644
--- a/examples/stm32f7/src/bin/button_exti.rs
+++ b/examples/stm32f7/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f7/src/bin/can.rs b/examples/stm32f7/src/bin/can.rs
index 78b21ceaa..bcfdb67a8 100644
--- a/examples/stm32f7/src/bin/can.rs
+++ b/examples/stm32f7/src/bin/can.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -12,6 +11,7 @@ use embassy_stm32::can::{
 };
 use embassy_stm32::gpio::{Input, Pull};
 use embassy_stm32::peripherals::CAN3;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -43,7 +43,8 @@ async fn main(spawner: Spawner) {
    let rx_pin = Input::new(&mut p.PA15, Pull::Up);
    core::mem::forget(rx_pin);
-    let can: &'static mut Can<'static, CAN3> = static_cell::make_static!(Can::new(p.CAN3, p.PA8, p.PA15, Irqs));
+    static CAN: StaticCell<Can<'static, CAN3>> = StaticCell::new();
+    let can = CAN.init(Can::new(p.CAN3, p.PA8, p.PA15, Irqs));
    can.as_mut()
        .modify_filters()
        .enable_bank(0, Fifo::Fifo0, Mask32::accept_all());
@@ -56,7 +57,8 @@ async fn main(spawner: Spawner) {
    let (tx, mut rx) = can.split();
-    let tx: &'static mut CanTx<'static, 'static, CAN3> = static_cell::make_static!(tx);
+    static CAN_TX: StaticCell<CanTx<'static, 'static, CAN3>> = StaticCell::new();
+    let tx = CAN_TX.init(tx);
    spawner.spawn(send_can_message(tx)).unwrap();
    loop {
diff --git a/examples/stm32f7/src/bin/eth.rs b/examples/stm32f7/src/bin/eth.rs
index dd0069447..5bff48197 100644
--- a/examples/stm32f7/src/bin/eth.rs
+++ b/examples/stm32f7/src/bin/eth.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -15,7 +14,7 @@ use embassy_stm32::{bind_interrupts, eth, peripherals, rng, Config};
 use embassy_time::Timer;
 use embedded_io_async::Write;
 use rand_core::RngCore;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -64,8 +63,9 @@ async fn main(spawner: Spawner) -> ! {
    let mac_addr = [0x00, 0x00, 0xDE, 0xAD, 0xBE, 0xEF];
+    static PACKETS: StaticCell<PacketQueue<16, 16>> = StaticCell::new();
    let device = Ethernet::new(
-        make_static!(PacketQueue::<16, 16>::new()),
+        PACKETS.init(PacketQueue::<16, 16>::new()),
        p.ETH,
        Irqs,
        p.PA1,
@@ -89,11 +89,13 @@ async fn main(spawner: Spawner) -> ! {
    //});
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/stm32f7/src/bin/flash.rs b/examples/stm32f7/src/bin/flash.rs
index 06a94f1c8..885570478 100644
--- a/examples/stm32f7/src/bin/flash.rs
+++ b/examples/stm32f7/src/bin/flash.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/stm32f7/src/bin/hello.rs b/examples/stm32f7/src/bin/hello.rs
index a2a287110..3c295612c 100644
--- a/examples/stm32f7/src/bin/hello.rs
+++ b/examples/stm32f7/src/bin/hello.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::info;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f7/src/bin/sdmmc.rs b/examples/stm32f7/src/bin/sdmmc.rs
index 990de0ab1..6d36ef518 100644
--- a/examples/stm32f7/src/bin/sdmmc.rs
+++ b/examples/stm32f7/src/bin/sdmmc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32f7/src/bin/usart_dma.rs b/examples/stm32f7/src/bin/usart_dma.rs
index ba064081e..fb604b34f 100644
--- a/examples/stm32f7/src/bin/usart_dma.rs
+++ b/examples/stm32f7/src/bin/usart_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
diff --git a/examples/stm32f7/src/bin/usb_serial.rs b/examples/stm32f7/src/bin/usb_serial.rs
index 4991edbf0..97daf6bd1 100644
--- a/examples/stm32f7/src/bin/usb_serial.rs
+++ b/examples/stm32f7/src/bin/usb_serial.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{panic, *};
 use embassy_executor::Spawner;
diff --git a/examples/stm32g0/Cargo.toml b/examples/stm32g0/Cargo.toml
index b1e749440..0abc0a638 100644
--- a/examples/stm32g0/Cargo.toml
+++ b/examples/stm32g0/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32g071rb to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "time-driver-any", "stm32g071rb", "memory-x", "unstable-pac", "exti"]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 defmt = "0.3"
diff --git a/examples/stm32g0/src/bin/blinky.rs b/examples/stm32g0/src/bin/blinky.rs
index 4bfc5a50d..31cce8225 100644
--- a/examples/stm32g0/src/bin/blinky.rs
+++ b/examples/stm32g0/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32g0/src/bin/button.rs b/examples/stm32g0/src/bin/button.rs
index 72a3f5cbf..265200132 100644
--- a/examples/stm32g0/src/bin/button.rs
+++ b/examples/stm32g0/src/bin/button.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
@@ -13,7 +12,7 @@ fn main() -> ! {
    let p = embassy_stm32::init(Default::default());
-    let button = Input::new(p.PC13, Pull::Up);
+    let mut button = Input::new(p.PC13, Pull::Up);
    loop {
        if button.is_high() {
diff --git a/examples/stm32g0/src/bin/button_exti.rs b/examples/stm32g0/src/bin/button_exti.rs
index ef32d4c4a..1e970fdd6 100644
--- a/examples/stm32g0/src/bin/button_exti.rs
+++ b/examples/stm32g0/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32g0/src/bin/flash.rs b/examples/stm32g0/src/bin/flash.rs
index ed9f2e843..acef87b92 100644
--- a/examples/stm32g0/src/bin/flash.rs
+++ b/examples/stm32g0/src/bin/flash.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32g0/src/bin/spi_neopixel.rs b/examples/stm32g0/src/bin/spi_neopixel.rs
index 214462d0e..c5ea51721 100644
--- a/examples/stm32g0/src/bin/spi_neopixel.rs
+++ b/examples/stm32g0/src/bin/spi_neopixel.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32g4/Cargo.toml b/examples/stm32g4/Cargo.toml
index c56a63623..987f23b3a 100644
--- a/examples/stm32g4/Cargo.toml
+++ b/examples/stm32g4/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32g491re to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "time-driver-any", "stm32g491re", "memory-x", "unstable-pac", "exti"]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
 embassy-futures = { version = "0.1.0", path = "../../embassy-futures" }
diff --git a/examples/stm32g4/src/bin/adc.rs b/examples/stm32g4/src/bin/adc.rs
index 63b20c0d4..35324d931 100644
--- a/examples/stm32g4/src/bin/adc.rs
+++ b/examples/stm32g4/src/bin/adc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32g4/src/bin/blinky.rs b/examples/stm32g4/src/bin/blinky.rs
index cbeb0dee1..90e479aae 100644
--- a/examples/stm32g4/src/bin/blinky.rs
+++ b/examples/stm32g4/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32g4/src/bin/button.rs b/examples/stm32g4/src/bin/button.rs
index 15abd86d9..6f3db0819 100644
--- a/examples/stm32g4/src/bin/button.rs
+++ b/examples/stm32g4/src/bin/button.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
@@ -13,7 +12,7 @@ fn main() -> ! {
    let p = embassy_stm32::init(Default::default());
-    let button = Input::new(p.PC13, Pull::Down);
+    let mut button = Input::new(p.PC13, Pull::Down);
    loop {
        if button.is_high() {
diff --git a/examples/stm32g4/src/bin/button_exti.rs b/examples/stm32g4/src/bin/button_exti.rs
index dfe587d41..67751187d 100644
--- a/examples/stm32g4/src/bin/button_exti.rs
+++ b/examples/stm32g4/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32g4/src/bin/pll.rs b/examples/stm32g4/src/bin/pll.rs
index 09ef59d44..46ebe0b0d 100644
--- a/examples/stm32g4/src/bin/pll.rs
+++ b/examples/stm32g4/src/bin/pll.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32g4/src/bin/pwm.rs b/examples/stm32g4/src/bin/pwm.rs
index a84394005..d4809a481 100644
--- a/examples/stm32g4/src/bin/pwm.rs
+++ b/examples/stm32g4/src/bin/pwm.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32g4/src/bin/usb_serial.rs b/examples/stm32g4/src/bin/usb_serial.rs
index 565b25d60..c26fa76b7 100644
--- a/examples/stm32g4/src/bin/usb_serial.rs
+++ b/examples/stm32g4/src/bin/usb_serial.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{panic, *};
 use embassy_executor::Spawner;
diff --git a/examples/stm32h5/Cargo.toml b/examples/stm32h5/Cargo.toml
index 0ed0ce3c0..8815b8e47 100644
--- a/examples/stm32h5/Cargo.toml
+++ b/examples/stm32h5/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32h563zi to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "stm32h563zi", "memory-x", "time-driver-any", "exti", "unstable-pac"] }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-net = { version = "0.2.0", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", "proto-ipv6"] }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
@@ -19,8 +19,8 @@ defmt-rtt = "0.4"
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
-embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-rc.2" }
+embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-rc.3" }
-embedded-hal-async = { version = "=1.0.0-rc.2" }
+embedded-hal-async = { version = "=1.0.0-rc.3" }
 embedded-io-async = { version = "0.6.1" }
 embedded-nal-async = { version = "0.7.1" }
 panic-probe = { version = "0.3", features = ["print-defmt"] }
@@ -31,7 +31,7 @@ critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.3.0"
 embedded-storage = "0.3.1"
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 # cargo build/run
 [profile.dev]
diff --git a/examples/stm32h5/src/bin/blinky.rs b/examples/stm32h5/src/bin/blinky.rs
index 1394f03fa..f37e8b1d8 100644
--- a/examples/stm32h5/src/bin/blinky.rs
+++ b/examples/stm32h5/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h5/src/bin/button_exti.rs b/examples/stm32h5/src/bin/button_exti.rs
index dfe587d41..67751187d 100644
--- a/examples/stm32h5/src/bin/button_exti.rs
+++ b/examples/stm32h5/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h5/src/bin/eth.rs b/examples/stm32h5/src/bin/eth.rs
index b2758cba0..2370656e6 100644
--- a/examples/stm32h5/src/bin/eth.rs
+++ b/examples/stm32h5/src/bin/eth.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -18,7 +17,7 @@ use embassy_stm32::{bind_interrupts, eth, peripherals, rng, Config};
 use embassy_time::Timer;
 use embedded_io_async::Write;
 use rand_core::RngCore;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -67,8 +66,9 @@ async fn main(spawner: Spawner) -> ! {
    let mac_addr = [0x00, 0x00, 0xDE, 0xAD, 0xBE, 0xEF];
+    static PACKETS: StaticCell<PacketQueue<4, 4>> = StaticCell::new();
    let device = Ethernet::new(
-        make_static!(PacketQueue::<4, 4>::new()),
+        PACKETS.init(PacketQueue::<4, 4>::new()),
        p.ETH,
        Irqs,
        p.PA1,
@@ -92,11 +92,13 @@ async fn main(spawner: Spawner) -> ! {
    //});
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/stm32h5/src/bin/i2c.rs b/examples/stm32h5/src/bin/i2c.rs
index 31783a2bf..31e83cbb5 100644
--- a/examples/stm32h5/src/bin/i2c.rs
+++ b/examples/stm32h5/src/bin/i2c.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h5/src/bin/rng.rs b/examples/stm32h5/src/bin/rng.rs
index 7c8c50eca..9c0d704b5 100644
--- a/examples/stm32h5/src/bin/rng.rs
+++ b/examples/stm32h5/src/bin/rng.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h5/src/bin/usart.rs b/examples/stm32h5/src/bin/usart.rs
index db04d4e55..f9cbad6af 100644
--- a/examples/stm32h5/src/bin/usart.rs
+++ b/examples/stm32h5/src/bin/usart.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
diff --git a/examples/stm32h5/src/bin/usart_dma.rs b/examples/stm32h5/src/bin/usart_dma.rs
index bafe50839..caae0dd18 100644
--- a/examples/stm32h5/src/bin/usart_dma.rs
+++ b/examples/stm32h5/src/bin/usart_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
diff --git a/examples/stm32h5/src/bin/usart_split.rs b/examples/stm32h5/src/bin/usart_split.rs
index d9037c014..92047de8d 100644
--- a/examples/stm32h5/src/bin/usart_split.rs
+++ b/examples/stm32h5/src/bin/usart_split.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h5/src/bin/usb_serial.rs b/examples/stm32h5/src/bin/usb_serial.rs
index 7d45818af..208493d8c 100644
--- a/examples/stm32h5/src/bin/usb_serial.rs
+++ b/examples/stm32h5/src/bin/usb_serial.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{panic, *};
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/Cargo.toml b/examples/stm32h7/Cargo.toml
index baa530cf6..31feeda45 100644
--- a/examples/stm32h7/Cargo.toml
+++ b/examples/stm32h7/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32h743bi to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32h743bi", "time-driver-any", "exti", "memory-x", "unstable-pac", "chrono"] }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-net = { version = "0.2.0", path = "../../embassy-net", features = ["defmt", "tcp", "dhcpv4", "medium-ethernet", "proto-ipv6", "dns"] }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
@@ -19,8 +19,8 @@ defmt-rtt = "0.4"
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
-embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-rc.2" }
+embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-rc.3" }
-embedded-hal-async = { version = "=1.0.0-rc.2" }
+embedded-hal-async = { version = "=1.0.0-rc.3" }
 embedded-nal-async = { version = "0.7.1" }
 embedded-io-async = { version = "0.6.1" }
 panic-probe = { version = "0.3", features = ["print-defmt"] }
@@ -31,7 +31,7 @@ critical-section = "1.1"
 micromath = "2.0.0"
 stm32-fmc = "0.3.0"
 embedded-storage = "0.3.1"
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 chrono = { version = "^0.4", default-features = false }
 # cargo build/run
diff --git a/examples/stm32h7/src/bin/adc.rs b/examples/stm32h7/src/bin/adc.rs
index e367827e9..fe6fe69a1 100644
--- a/examples/stm32h7/src/bin/adc.rs
+++ b/examples/stm32h7/src/bin/adc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/blinky.rs b/examples/stm32h7/src/bin/blinky.rs
index a9cab1ff4..1ee90a870 100644
--- a/examples/stm32h7/src/bin/blinky.rs
+++ b/examples/stm32h7/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/button_exti.rs b/examples/stm32h7/src/bin/button_exti.rs
index dfe587d41..67751187d 100644
--- a/examples/stm32h7/src/bin/button_exti.rs
+++ b/examples/stm32h7/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/camera.rs b/examples/stm32h7/src/bin/camera.rs
index 489fb03dd..e5a104baf 100644
--- a/examples/stm32h7/src/bin/camera.rs
+++ b/examples/stm32h7/src/bin/camera.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use embassy_executor::Spawner;
 use embassy_stm32::dcmi::{self, *};
diff --git a/examples/stm32h7/src/bin/dac.rs b/examples/stm32h7/src/bin/dac.rs
index f66268151..a9bf46de0 100644
--- a/examples/stm32h7/src/bin/dac.rs
+++ b/examples/stm32h7/src/bin/dac.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
diff --git a/examples/stm32h7/src/bin/dac_dma.rs b/examples/stm32h7/src/bin/dac_dma.rs
index c19fdd623..8e5c41a43 100644
--- a/examples/stm32h7/src/bin/dac_dma.rs
+++ b/examples/stm32h7/src/bin/dac_dma.rs
@@ -1,11 +1,10 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
 use embassy_stm32::dac::{DacCh1, DacCh2, ValueArray};
-use embassy_stm32::pac::timer::vals::{Mms, Opm};
+use embassy_stm32::pac::timer::vals::Mms;
 use embassy_stm32::peripherals::{DAC1, DMA1_CH3, DMA1_CH4, TIM6, TIM7};
 use embassy_stm32::rcc::low_level::RccPeripheral;
 use embassy_stm32::time::Hertz;
@@ -79,7 +78,7 @@ async fn dac_task1(mut dac: DacCh1<'static, DAC1, DMA1_CH3>) {
    TIM6::regs().arr().modify(|w| w.set_arr(reload as u16 - 1));
    TIM6::regs().cr2().modify(|w| w.set_mms(Mms::UPDATE));
    TIM6::regs().cr1().modify(|w| {
-        w.set_opm(Opm::DISABLED);
+        w.set_opm(false);
        w.set_cen(true);
    });
@@ -116,7 +115,7 @@ async fn dac_task2(mut dac: DacCh2<'static, DAC1, DMA1_CH4>) {
    TIM7::regs().arr().modify(|w| w.set_arr(reload as u16 - 1));
    TIM7::regs().cr2().modify(|w| w.set_mms(Mms::UPDATE));
    TIM7::regs().cr1().modify(|w| {
-        w.set_opm(Opm::DISABLED);
+        w.set_opm(false);
        w.set_cen(true);
    });
diff --git a/examples/stm32h7/src/bin/eth.rs b/examples/stm32h7/src/bin/eth.rs
index dbddfc22f..cd9a27fcd 100644
--- a/examples/stm32h7/src/bin/eth.rs
+++ b/examples/stm32h7/src/bin/eth.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -14,7 +13,7 @@ use embassy_stm32::{bind_interrupts, eth, peripherals, rng, Config};
 use embassy_time::Timer;
 use embedded_io_async::Write;
 use rand_core::RngCore;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -64,8 +63,9 @@ async fn main(spawner: Spawner) -> ! {
    let mac_addr = [0x00, 0x00, 0xDE, 0xAD, 0xBE, 0xEF];
+    static PACKETS: StaticCell<PacketQueue<4, 4>> = StaticCell::new();
    let device = Ethernet::new(
-        make_static!(PacketQueue::<16, 16>::new()),
+        PACKETS.init(PacketQueue::<4, 4>::new()),
        p.ETH,
        Irqs,
        p.PA1,
@@ -89,11 +89,13 @@ async fn main(spawner: Spawner) -> ! {
    //});
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<3>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<3>::new()),
+        RESOURCES.init(StackResources::<3>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/stm32h7/src/bin/eth_client.rs b/examples/stm32h7/src/bin/eth_client.rs
index 17e1d9fb7..dcc6e36e2 100644
--- a/examples/stm32h7/src/bin/eth_client.rs
+++ b/examples/stm32h7/src/bin/eth_client.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -15,7 +14,7 @@ use embassy_time::Timer;
 use embedded_io_async::Write;
 use embedded_nal_async::{Ipv4Addr, SocketAddr, SocketAddrV4, TcpConnect};
 use rand_core::RngCore;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -65,8 +64,9 @@ async fn main(spawner: Spawner) -> ! {
    let mac_addr = [0x00, 0x00, 0xDE, 0xAD, 0xBE, 0xEF];
+    static PACKETS: StaticCell<PacketQueue<16, 16>> = StaticCell::new();
    let device = Ethernet::new(
-        make_static!(PacketQueue::<16, 16>::new()),
+        PACKETS.init(PacketQueue::<16, 16>::new()),
        p.ETH,
        Irqs,
        p.PA1,
@@ -90,11 +90,13 @@ async fn main(spawner: Spawner) -> ! {
    //});
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<3>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<3>::new()),
+        RESOURCES.init(StackResources::<3>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/stm32h7/src/bin/flash.rs b/examples/stm32h7/src/bin/flash.rs
index 89c0c8a66..4f9f6bb0a 100644
--- a/examples/stm32h7/src/bin/flash.rs
+++ b/examples/stm32h7/src/bin/flash.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/fmc.rs b/examples/stm32h7/src/bin/fmc.rs
index 54e2c3629..5e5e6ccc8 100644
--- a/examples/stm32h7/src/bin/fmc.rs
+++ b/examples/stm32h7/src/bin/fmc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/i2c.rs b/examples/stm32h7/src/bin/i2c.rs
index aea21ec6f..3bf39eb44 100644
--- a/examples/stm32h7/src/bin/i2c.rs
+++ b/examples/stm32h7/src/bin/i2c.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/low_level_timer_api.rs b/examples/stm32h7/src/bin/low_level_timer_api.rs
index e0be495d1..cc508c3cf 100644
--- a/examples/stm32h7/src/bin/low_level_timer_api.rs
+++ b/examples/stm32h7/src/bin/low_level_timer_api.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -85,7 +84,7 @@ impl<'d, T: CaptureCompare32bitInstance> SimplePwm32<'d, T> {
        let mut this = Self { inner: tim };
-        this.set_freq(freq);
+        this.set_frequency(freq);
        this.inner.start();
        let r = T::regs_gp32();
@@ -102,14 +101,14 @@ impl<'d, T: CaptureCompare32bitInstance> SimplePwm32<'d, T> {
    }
    pub fn enable(&mut self, channel: Channel) {
-        T::regs_gp32().ccer().modify(|w| w.set_cce(channel.raw(), true));
+        T::regs_gp32().ccer().modify(|w| w.set_cce(channel.index(), true));
    }
    pub fn disable(&mut self, channel: Channel) {
-        T::regs_gp32().ccer().modify(|w| w.set_cce(channel.raw(), false));
+        T::regs_gp32().ccer().modify(|w| w.set_cce(channel.index(), false));
    }
-    pub fn set_freq(&mut self, freq: Hertz) {
+    pub fn set_frequency(&mut self, freq: Hertz) {
        <T as embassy_stm32::timer::low_level::GeneralPurpose32bitInstance>::set_frequency(&mut self.inner, freq);
    }
@@ -119,6 +118,6 @@ impl<'d, T: CaptureCompare32bitInstance> SimplePwm32<'d, T> {
    pub fn set_duty(&mut self, channel: Channel, duty: u32) {
        defmt::assert!(duty < self.get_max_duty());
-        T::regs_gp32().ccr(channel.raw()).modify(|w| w.set_ccr(duty))
+        T::regs_gp32().ccr(channel.index()).modify(|w| w.set_ccr(duty))
    }
 }
diff --git a/examples/stm32h7/src/bin/mco.rs b/examples/stm32h7/src/bin/mco.rs
index c023f4584..a6ee27625 100644
--- a/examples/stm32h7/src/bin/mco.rs
+++ b/examples/stm32h7/src/bin/mco.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/pwm.rs b/examples/stm32h7/src/bin/pwm.rs
index c55d780a0..1e48ba67b 100644
--- a/examples/stm32h7/src/bin/pwm.rs
+++ b/examples/stm32h7/src/bin/pwm.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/rng.rs b/examples/stm32h7/src/bin/rng.rs
index 1fb4cfec0..a9ef7200d 100644
--- a/examples/stm32h7/src/bin/rng.rs
+++ b/examples/stm32h7/src/bin/rng.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/rtc.rs b/examples/stm32h7/src/bin/rtc.rs
index 78cea9c89..c6b9cf57e 100644
--- a/examples/stm32h7/src/bin/rtc.rs
+++ b/examples/stm32h7/src/bin/rtc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use chrono::{NaiveDate, NaiveDateTime};
 use defmt::*;
diff --git a/examples/stm32h7/src/bin/sdmmc.rs b/examples/stm32h7/src/bin/sdmmc.rs
index be968ff77..abe2d4ba7 100644
--- a/examples/stm32h7/src/bin/sdmmc.rs
+++ b/examples/stm32h7/src/bin/sdmmc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/signal.rs b/examples/stm32h7/src/bin/signal.rs
index b5f583289..b73360f32 100644
--- a/examples/stm32h7/src/bin/signal.rs
+++ b/examples/stm32h7/src/bin/signal.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/spi.rs b/examples/stm32h7/src/bin/spi.rs
index a8db0ff77..aed27723a 100644
--- a/examples/stm32h7/src/bin/spi.rs
+++ b/examples/stm32h7/src/bin/spi.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
 use core::str::from_utf8;
diff --git a/examples/stm32h7/src/bin/spi_dma.rs b/examples/stm32h7/src/bin/spi_dma.rs
index 561052e48..54d4d7656 100644
--- a/examples/stm32h7/src/bin/spi_dma.rs
+++ b/examples/stm32h7/src/bin/spi_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
 use core::str::from_utf8;
diff --git a/examples/stm32h7/src/bin/usart.rs b/examples/stm32h7/src/bin/usart.rs
index db04d4e55..f9cbad6af 100644
--- a/examples/stm32h7/src/bin/usart.rs
+++ b/examples/stm32h7/src/bin/usart.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
diff --git a/examples/stm32h7/src/bin/usart_dma.rs b/examples/stm32h7/src/bin/usart_dma.rs
index 249050fd1..ae1f3a2e9 100644
--- a/examples/stm32h7/src/bin/usart_dma.rs
+++ b/examples/stm32h7/src/bin/usart_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
diff --git a/examples/stm32h7/src/bin/usart_split.rs b/examples/stm32h7/src/bin/usart_split.rs
index 61c9f1954..b98c40877 100644
--- a/examples/stm32h7/src/bin/usart_split.rs
+++ b/examples/stm32h7/src/bin/usart_split.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/usb_serial.rs b/examples/stm32h7/src/bin/usb_serial.rs
index f80cf63ec..d81efb541 100644
--- a/examples/stm32h7/src/bin/usb_serial.rs
+++ b/examples/stm32h7/src/bin/usb_serial.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{panic, *};
 use embassy_executor::Spawner;
diff --git a/examples/stm32h7/src/bin/wdg.rs b/examples/stm32h7/src/bin/wdg.rs
index 76fd9dfc0..a4184aa96 100644
--- a/examples/stm32h7/src/bin/wdg.rs
+++ b/examples/stm32h7/src/bin/wdg.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l0/Cargo.toml b/examples/stm32l0/Cargo.toml
index 7c8264739..739aa6cb1 100644
--- a/examples/stm32l0/Cargo.toml
+++ b/examples/stm32l0/Cargo.toml
@@ -4,10 +4,6 @@ name = "embassy-stm32l0-examples"
 version = "0.1.0"
 license = "MIT OR Apache-2.0"
-[features]
-default = ["nightly"]
-nightly = ["embassy-executor/nightly"]
 [dependencies]
 # Change stm32l072cz to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32l072cz", "time-driver-any", "exti", "memory-x"]  }
diff --git a/examples/stm32l0/src/bin/blinky.rs b/examples/stm32l0/src/bin/blinky.rs
index ea40bfc48..caca5759f 100644
--- a/examples/stm32l0/src/bin/blinky.rs
+++ b/examples/stm32l0/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l0/src/bin/button.rs b/examples/stm32l0/src/bin/button.rs
index 9d194471e..165a714a5 100644
--- a/examples/stm32l0/src/bin/button.rs
+++ b/examples/stm32l0/src/bin/button.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -12,7 +11,7 @@ async fn main(_spawner: Spawner) {
    let p = embassy_stm32::init(Default::default());
    info!("Hello World!");
-    let button = Input::new(p.PB2, Pull::Up);
+    let mut button = Input::new(p.PB2, Pull::Up);
    let mut led1 = Output::new(p.PA5, Level::High, Speed::Low);
    let mut led2 = Output::new(p.PB5, Level::High, Speed::Low);
diff --git a/examples/stm32l0/src/bin/button_exti.rs b/examples/stm32l0/src/bin/button_exti.rs
index ffede253e..f517fce04 100644
--- a/examples/stm32l0/src/bin/button_exti.rs
+++ b/examples/stm32l0/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l0/src/bin/flash.rs b/examples/stm32l0/src/bin/flash.rs
index 86f6c70b9..1865748fd 100644
--- a/examples/stm32l0/src/bin/flash.rs
+++ b/examples/stm32l0/src/bin/flash.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/stm32l0/src/bin/spi.rs b/examples/stm32l0/src/bin/spi.rs
index 583e3d127..f23a537b8 100644
--- a/examples/stm32l0/src/bin/spi.rs
+++ b/examples/stm32l0/src/bin/spi.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l0/src/bin/usart_dma.rs b/examples/stm32l0/src/bin/usart_dma.rs
index 62c9b5595..74889c838 100644
--- a/examples/stm32l0/src/bin/usart_dma.rs
+++ b/examples/stm32l0/src/bin/usart_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l0/src/bin/usart_irq.rs b/examples/stm32l0/src/bin/usart_irq.rs
index 5107a1a0a..2c96a8bc2 100644
--- a/examples/stm32l0/src/bin/usart_irq.rs
+++ b/examples/stm32l0/src/bin/usart_irq.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l1/Cargo.toml b/examples/stm32l1/Cargo.toml
index 23dd0ef87..071d6a502 100644
--- a/examples/stm32l1/Cargo.toml
+++ b/examples/stm32l1/Cargo.toml
@@ -6,7 +6,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "stm32l151cb-a", "time-driver-any", "memory-x"]  }
diff --git a/examples/stm32l1/src/bin/blinky.rs b/examples/stm32l1/src/bin/blinky.rs
index 06f732eb7..da6777b2d 100644
--- a/examples/stm32l1/src/bin/blinky.rs
+++ b/examples/stm32l1/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l1/src/bin/flash.rs b/examples/stm32l1/src/bin/flash.rs
index aeb535cca..e9ce4eae8 100644
--- a/examples/stm32l1/src/bin/flash.rs
+++ b/examples/stm32l1/src/bin/flash.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/stm32l1/src/bin/spi.rs b/examples/stm32l1/src/bin/spi.rs
index 905b4d75c..8be686c5a 100644
--- a/examples/stm32l1/src/bin/spi.rs
+++ b/examples/stm32l1/src/bin/spi.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l4/Cargo.toml b/examples/stm32l4/Cargo.toml
index a936d27c3..8a5fb5749 100644
--- a/examples/stm32l4/Cargo.toml
+++ b/examples/stm32l4/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32l4s5vi to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "unstable-pac", "stm32l4s5qi", "memory-x", "time-driver-any", "exti", "chrono"]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768", ] }
 embassy-embedded-hal = { version = "0.1.0", path = "../../embassy-embedded-hal" }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
@@ -24,15 +24,15 @@ defmt-rtt = "0.4"
 cortex-m = { version = "0.7.6", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 embedded-hal = "0.2.6"
-embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-rc.2" }
+embedded-hal-1 = { package = "embedded-hal", version = "=1.0.0-rc.3" }
-embedded-hal-async = { version = "=1.0.0-rc.2" }
+embedded-hal-async = { version = "=1.0.0-rc.3" }
-embedded-hal-bus = { version = "=0.1.0-rc.2", features = ["async"] }
+embedded-hal-bus = { version = "=0.1.0-rc.3", features = ["async"] }
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
 heapless = { version = "0.8", default-features = false }
 chrono = { version = "^0.4", default-features = false }
 rand = { version = "0.8.5", default-features = false }
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 micromath = "2.0.0"
diff --git a/examples/stm32l4/src/bin/adc.rs b/examples/stm32l4/src/bin/adc.rs
index a0ec5c33e..d01e9f1b3 100644
--- a/examples/stm32l4/src/bin/adc.rs
+++ b/examples/stm32l4/src/bin/adc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_stm32::adc::{Adc, Resolution};
diff --git a/examples/stm32l4/src/bin/blinky.rs b/examples/stm32l4/src/bin/blinky.rs
index 6202fe2f7..b55dfd35e 100644
--- a/examples/stm32l4/src/bin/blinky.rs
+++ b/examples/stm32l4/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l4/src/bin/button.rs b/examples/stm32l4/src/bin/button.rs
index 73b1962e8..15288c61e 100644
--- a/examples/stm32l4/src/bin/button.rs
+++ b/examples/stm32l4/src/bin/button.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_stm32::gpio::{Input, Pull};
@@ -12,7 +11,7 @@ fn main() -> ! {
    let p = embassy_stm32::init(Default::default());
-    let button = Input::new(p.PC13, Pull::Up);
+    let mut button = Input::new(p.PC13, Pull::Up);
    loop {
        if button.is_high() {
diff --git a/examples/stm32l4/src/bin/button_exti.rs b/examples/stm32l4/src/bin/button_exti.rs
index ef32d4c4a..1e970fdd6 100644
--- a/examples/stm32l4/src/bin/button_exti.rs
+++ b/examples/stm32l4/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l4/src/bin/dac.rs b/examples/stm32l4/src/bin/dac.rs
index d6a7ff624..fdbf1d374 100644
--- a/examples/stm32l4/src/bin/dac.rs
+++ b/examples/stm32l4/src/bin/dac.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_stm32::dac::{DacCh1, Value};
diff --git a/examples/stm32l4/src/bin/dac_dma.rs b/examples/stm32l4/src/bin/dac_dma.rs
index dc86dbf43..8e5098557 100644
--- a/examples/stm32l4/src/bin/dac_dma.rs
+++ b/examples/stm32l4/src/bin/dac_dma.rs
@@ -1,11 +1,10 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
 use embassy_stm32::dac::{DacCh1, DacCh2, ValueArray};
-use embassy_stm32::pac::timer::vals::{Mms, Opm};
+use embassy_stm32::pac::timer::vals::Mms;
 use embassy_stm32::peripherals::{DAC1, DMA1_CH3, DMA1_CH4, TIM6, TIM7};
 use embassy_stm32::rcc::low_level::RccPeripheral;
 use embassy_stm32::time::Hertz;
@@ -50,7 +49,7 @@ async fn dac_task1(mut dac: DacCh1<'static, DAC1, DMA1_CH3>) {
    TIM6::regs().arr().modify(|w| w.set_arr(reload as u16 - 1));
    TIM6::regs().cr2().modify(|w| w.set_mms(Mms::UPDATE));
    TIM6::regs().cr1().modify(|w| {
-        w.set_opm(Opm::DISABLED);
+        w.set_opm(false);
        w.set_cen(true);
    });
@@ -87,7 +86,7 @@ async fn dac_task2(mut dac: DacCh2<'static, DAC1, DMA1_CH4>) {
    TIM7::regs().arr().modify(|w| w.set_arr(reload as u16 - 1));
    TIM7::regs().cr2().modify(|w| w.set_mms(Mms::UPDATE));
    TIM7::regs().cr1().modify(|w| {
-        w.set_opm(Opm::DISABLED);
+        w.set_opm(false);
        w.set_cen(true);
    });
diff --git a/examples/stm32l4/src/bin/i2c.rs b/examples/stm32l4/src/bin/i2c.rs
index 07dc12e8c..f553deb82 100644
--- a/examples/stm32l4/src/bin/i2c.rs
+++ b/examples/stm32l4/src/bin/i2c.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l4/src/bin/i2c_blocking_async.rs b/examples/stm32l4/src/bin/i2c_blocking_async.rs
index 60a4e2eb3..1b8652bcc 100644
--- a/examples/stm32l4/src/bin/i2c_blocking_async.rs
+++ b/examples/stm32l4/src/bin/i2c_blocking_async.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_embedded_hal::adapter::BlockingAsync;
diff --git a/examples/stm32l4/src/bin/i2c_dma.rs b/examples/stm32l4/src/bin/i2c_dma.rs
index 4c2c224a6..794972a33 100644
--- a/examples/stm32l4/src/bin/i2c_dma.rs
+++ b/examples/stm32l4/src/bin/i2c_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l4/src/bin/mco.rs b/examples/stm32l4/src/bin/mco.rs
index 504879887..36c002952 100644
--- a/examples/stm32l4/src/bin/mco.rs
+++ b/examples/stm32l4/src/bin/mco.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l4/src/bin/rng.rs b/examples/stm32l4/src/bin/rng.rs
index e5ad56fb9..638b3e9e4 100644
--- a/examples/stm32l4/src/bin/rng.rs
+++ b/examples/stm32l4/src/bin/rng.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l4/src/bin/rtc.rs b/examples/stm32l4/src/bin/rtc.rs
index d2a2aa1f2..526620bfb 100644
--- a/examples/stm32l4/src/bin/rtc.rs
+++ b/examples/stm32l4/src/bin/rtc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use chrono::{NaiveDate, NaiveDateTime};
 use defmt::*;
diff --git a/examples/stm32l4/src/bin/spe_adin1110_http_server.rs b/examples/stm32l4/src/bin/spe_adin1110_http_server.rs
index 4826e0bed..9565ae168 100644
--- a/examples/stm32l4/src/bin/spe_adin1110_http_server.rs
+++ b/examples/stm32l4/src/bin/spe_adin1110_http_server.rs
@@ -1,10 +1,7 @@
-#![deny(clippy::pedantic)]
-#![allow(clippy::doc_markdown)]
 #![no_main]
 #![no_std]
-// Needed unitl https://github.com/rust-lang/rust/issues/63063 is stablised.
+#![deny(clippy::pedantic)]
-#![feature(type_alias_impl_trait)]
+#![allow(clippy::doc_markdown)]
-#![feature(associated_type_bounds)]
 #![allow(clippy::missing_errors_doc)]
 // This example works on a ANALOG DEVICE EVAL-ADIN110EBZ board.
@@ -36,7 +33,7 @@ use hal::rng::{self, Rng};
 use hal::{bind_interrupts, exti, pac, peripherals};
 use heapless::Vec;
 use rand::RngCore;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {embassy_stm32 as hal, panic_probe as _};
 bind_interrupts!(struct Irqs {
@@ -114,8 +111,8 @@ async fn main(spawner: Spawner) {
    let led_uc4_blue = Output::new(dp.PG15, Level::High, Speed::Low);
    // Read the uc_cfg switches
-    let uc_cfg0 = Input::new(dp.PB2, Pull::None);
+    let mut uc_cfg0 = Input::new(dp.PB2, Pull::None);
-    let uc_cfg1 = Input::new(dp.PF11, Pull::None);
+    let mut uc_cfg1 = Input::new(dp.PF11, Pull::None);
    let _uc_cfg2 = Input::new(dp.PG6, Pull::None);
    let _uc_cfg3 = Input::new(dp.PG11, Pull::None);
@@ -133,8 +130,8 @@ async fn main(spawner: Spawner) {
    // Setup IO and SPI for the SPE chip
    let spe_reset_n = Output::new(dp.PC7, Level::Low, Speed::Low);
-    let spe_cfg0 = Input::new(dp.PC8, Pull::None);
+    let mut spe_cfg0 = Input::new(dp.PC8, Pull::None);
-    let spe_cfg1 = Input::new(dp.PC9, Pull::None);
+    let mut spe_cfg1 = Input::new(dp.PC9, Pull::None);
    let _spe_ts_capt = Output::new(dp.PC6, Level::Low, Speed::Low);
    let spe_int = Input::new(dp.PB11, Pull::None);
@@ -180,7 +177,8 @@ async fn main(spawner: Spawner) {
        }
    };
-    let state = make_static!(embassy_net_adin1110::State::<8, 8>::new());
+    static STATE: StaticCell<embassy_net_adin1110::State<8, 8>> = StaticCell::new();
+    let state = STATE.init(embassy_net_adin1110::State::<8, 8>::new());
    let (device, runner) = embassy_net_adin1110::new(
        MAC,
@@ -217,11 +215,13 @@ async fn main(spawner: Spawner) {
    };
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device<'static>>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        ip_cfg,
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    // Launch network task
diff --git a/examples/stm32l4/src/bin/spi.rs b/examples/stm32l4/src/bin/spi.rs
index 54cf68f7b..6653e4516 100644
--- a/examples/stm32l4/src/bin/spi.rs
+++ b/examples/stm32l4/src/bin/spi.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_stm32::dma::NoDma;
diff --git a/examples/stm32l4/src/bin/spi_blocking_async.rs b/examples/stm32l4/src/bin/spi_blocking_async.rs
index f1b80087c..a989a5a4a 100644
--- a/examples/stm32l4/src/bin/spi_blocking_async.rs
+++ b/examples/stm32l4/src/bin/spi_blocking_async.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_embedded_hal::adapter::BlockingAsync;
@@ -30,7 +29,7 @@ async fn main(_spawner: Spawner) {
    let _wake = Output::new(p.PB13, Level::Low, Speed::VeryHigh);
    let mut reset = Output::new(p.PE8, Level::Low, Speed::VeryHigh);
    let mut cs = Output::new(p.PE0, Level::High, Speed::VeryHigh);
-    let ready = Input::new(p.PE1, Pull::Up);
+    let mut ready = Input::new(p.PE1, Pull::Up);
    cortex_m::asm::delay(100_000);
    reset.set_high();
diff --git a/examples/stm32l4/src/bin/spi_dma.rs b/examples/stm32l4/src/bin/spi_dma.rs
index ff9b5b43b..7922165df 100644
--- a/examples/stm32l4/src/bin/spi_dma.rs
+++ b/examples/stm32l4/src/bin/spi_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -25,7 +24,7 @@ async fn main(_spawner: Spawner) {
    let _wake = Output::new(p.PB13, Level::Low, Speed::VeryHigh);
    let mut reset = Output::new(p.PE8, Level::Low, Speed::VeryHigh);
    let mut cs = Output::new(p.PE0, Level::High, Speed::VeryHigh);
-    let ready = Input::new(p.PE1, Pull::Up);
+    let mut ready = Input::new(p.PE1, Pull::Up);
    cortex_m::asm::delay(100_000);
    reset.set_high();
diff --git a/examples/stm32l4/src/bin/usart.rs b/examples/stm32l4/src/bin/usart.rs
index f4da6b5ae..7bab23950 100644
--- a/examples/stm32l4/src/bin/usart.rs
+++ b/examples/stm32l4/src/bin/usart.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_stm32::dma::NoDma;
diff --git a/examples/stm32l4/src/bin/usart_dma.rs b/examples/stm32l4/src/bin/usart_dma.rs
index 2f3b2a0f0..031888f70 100644
--- a/examples/stm32l4/src/bin/usart_dma.rs
+++ b/examples/stm32l4/src/bin/usart_dma.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::fmt::Write;
diff --git a/examples/stm32l4/src/bin/usb_serial.rs b/examples/stm32l4/src/bin/usb_serial.rs
index 4baf5f05d..8cc9a7aed 100644
--- a/examples/stm32l4/src/bin/usb_serial.rs
+++ b/examples/stm32l4/src/bin/usb_serial.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{panic, *};
 use defmt_rtt as _; // global logger
diff --git a/examples/stm32l5/Cargo.toml b/examples/stm32l5/Cargo.toml
index 2557ef42d..0d236ec90 100644
--- a/examples/stm32l5/Cargo.toml
+++ b/examples/stm32l5/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32l552ze to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "unstable-pac", "stm32l552ze", "time-driver-any", "exti", "memory-x"]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
 embassy-net = { version = "0.2.0", path = "../../embassy-net", features = ["defmt",  "tcp", "dhcpv4", "medium-ethernet"] }
@@ -26,7 +26,7 @@ futures = { version = "0.3.17", default-features = false, features = ["async-awa
 heapless = { version = "0.8", default-features = false }
 rand_core = { version = "0.6.3", default-features = false }
 embedded-io-async = { version = "0.6.1" }
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 [profile.release]
 debug = 2
diff --git a/examples/stm32l5/src/bin/button_exti.rs b/examples/stm32l5/src/bin/button_exti.rs
index e80ad2b3a..91d0ccc2e 100644
--- a/examples/stm32l5/src/bin/button_exti.rs
+++ b/examples/stm32l5/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l5/src/bin/rng.rs b/examples/stm32l5/src/bin/rng.rs
index 279f4f65d..50da6c946 100644
--- a/examples/stm32l5/src/bin/rng.rs
+++ b/examples/stm32l5/src/bin/rng.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l5/src/bin/usb_ethernet.rs b/examples/stm32l5/src/bin/usb_ethernet.rs
index 0b0a0e2db..88060b6b0 100644
--- a/examples/stm32l5/src/bin/usb_ethernet.rs
+++ b/examples/stm32l5/src/bin/usb_ethernet.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -15,7 +14,7 @@ use embassy_usb::class::cdc_ncm::{CdcNcmClass, State};
 use embassy_usb::{Builder, UsbDevice};
 use embedded_io_async::Write;
 use rand_core::RngCore;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 type MyDriver = Driver<'static, embassy_stm32::peripherals::USB>;
@@ -76,14 +75,18 @@ async fn main(spawner: Spawner) {
    config.device_protocol = 0x01;
    // Create embassy-usb DeviceBuilder using the driver and config.
+    static DEVICE_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static CONFIG_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static BOS_DESC: StaticCell<[u8; 256]> = StaticCell::new();
+    static CONTROL_BUF: StaticCell<[u8; 128]> = StaticCell::new();
    let mut builder = Builder::new(
        driver,
        config,
-        &mut make_static!([0; 256])[..],
+        &mut DEVICE_DESC.init([0; 256])[..],
-        &mut make_static!([0; 256])[..],
+        &mut CONFIG_DESC.init([0; 256])[..],
-        &mut make_static!([0; 256])[..],
+        &mut BOS_DESC.init([0; 256])[..],
        &mut [], // no msos descriptors
-        &mut make_static!([0; 128])[..],
+        &mut CONTROL_BUF.init([0; 128])[..],
    );
    // Our MAC addr.
@@ -92,14 +95,16 @@ async fn main(spawner: Spawner) {
    let host_mac_addr = [0x88, 0x88, 0x88, 0x88, 0x88, 0x88];
    // Create classes on the builder.
-    let class = CdcNcmClass::new(&mut builder, make_static!(State::new()), host_mac_addr, 64);
+    static STATE: StaticCell<State> = StaticCell::new();
+    let class = CdcNcmClass::new(&mut builder, STATE.init(State::new()), host_mac_addr, 64);
    // Build the builder.
    let usb = builder.build();
    unwrap!(spawner.spawn(usb_task(usb)));
-    let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(make_static!(NetState::new()), our_mac_addr);
+    static NET_STATE: StaticCell<NetState<MTU, 4, 4>> = StaticCell::new();
+    let (runner, device) = class.into_embassy_net_device::<MTU, 4, 4>(NET_STATE.init(NetState::new()), our_mac_addr);
    unwrap!(spawner.spawn(usb_ncm_task(runner)));
    let config = embassy_net::Config::dhcpv4(Default::default());
@@ -114,11 +119,13 @@ async fn main(spawner: Spawner) {
    let seed = rng.next_u64();
    // Init network stack
-    let stack = &*make_static!(Stack::new(
+    static STACK: StaticCell<Stack<Device<'static, MTU>>> = StaticCell::new();
+    static RESOURCES: StaticCell<StackResources<2>> = StaticCell::new();
+    let stack = &*STACK.init(Stack::new(
        device,
        config,
-        make_static!(StackResources::<2>::new()),
+        RESOURCES.init(StackResources::<2>::new()),
-        seed
+        seed,
    ));
    unwrap!(spawner.spawn(net_task(stack)));
diff --git a/examples/stm32l5/src/bin/usb_hid_mouse.rs b/examples/stm32l5/src/bin/usb_hid_mouse.rs
index 3614a8e0a..7c8a8ebfb 100644
--- a/examples/stm32l5/src/bin/usb_hid_mouse.rs
+++ b/examples/stm32l5/src/bin/usb_hid_mouse.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32l5/src/bin/usb_serial.rs b/examples/stm32l5/src/bin/usb_serial.rs
index f2b894b68..75053ce4b 100644
--- a/examples/stm32l5/src/bin/usb_serial.rs
+++ b/examples/stm32l5/src/bin/usb_serial.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{panic, *};
 use embassy_executor::Spawner;
diff --git a/examples/stm32u5/Cargo.toml b/examples/stm32u5/Cargo.toml
index 1afbd8db4..029b2cfe0 100644
--- a/examples/stm32u5/Cargo.toml
+++ b/examples/stm32u5/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32u585ai to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "unstable-pac", "stm32u585ai", "time-driver-any", "memory-x" ]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-usb = { version = "0.1.0", path = "../../embassy-usb", features = ["defmt"] }
diff --git a/examples/stm32u5/src/bin/blinky.rs b/examples/stm32u5/src/bin/blinky.rs
index 4b44cb12b..7fe88c183 100644
--- a/examples/stm32u5/src/bin/blinky.rs
+++ b/examples/stm32u5/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32u5/src/bin/boot.rs b/examples/stm32u5/src/bin/boot.rs
index e2112ce5c..23c7f8b22 100644
--- a/examples/stm32u5/src/bin/boot.rs
+++ b/examples/stm32u5/src/bin/boot.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use {defmt_rtt as _, embassy_stm32 as _, panic_probe as _};
diff --git a/examples/stm32u5/src/bin/usb_serial.rs b/examples/stm32u5/src/bin/usb_serial.rs
index 839d6472f..44d1df4f1 100644
--- a/examples/stm32u5/src/bin/usb_serial.rs
+++ b/examples/stm32u5/src/bin/usb_serial.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{panic, *};
 use defmt_rtt as _; // global logger
diff --git a/examples/stm32wb/Cargo.toml b/examples/stm32wb/Cargo.toml
index ada1f32e9..bce53c440 100644
--- a/examples/stm32wb/Cargo.toml
+++ b/examples/stm32wb/Cargo.toml
@@ -9,7 +9,7 @@ license = "MIT OR Apache-2.0"
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "stm32wb55rg", "time-driver-any", "memory-x", "exti"]  }
 embassy-stm32-wpan = { version = "0.1.0", path = "../../embassy-stm32-wpan", features = ["defmt", "stm32wb55rg"] }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-net = { version = "0.2.0", path = "../../embassy-net", features = ["defmt", "udp", "proto-ipv6", "medium-ieee802154", ], optional=true }
@@ -22,7 +22,7 @@ embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
 heapless = { version = "0.8", default-features = false }
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 [features]
 default = ["ble", "mac"]
diff --git a/examples/stm32wb/src/bin/blinky.rs b/examples/stm32wb/src/bin/blinky.rs
index 1394f03fa..f37e8b1d8 100644
--- a/examples/stm32wb/src/bin/blinky.rs
+++ b/examples/stm32wb/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wb/src/bin/button_exti.rs b/examples/stm32wb/src/bin/button_exti.rs
index 3648db6ff..d34dde3e9 100644
--- a/examples/stm32wb/src/bin/button_exti.rs
+++ b/examples/stm32wb/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wb/src/bin/eddystone_beacon.rs b/examples/stm32wb/src/bin/eddystone_beacon.rs
index e58da8e35..cf9a5aa28 100644
--- a/examples/stm32wb/src/bin/eddystone_beacon.rs
+++ b/examples/stm32wb/src/bin/eddystone_beacon.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::time::Duration;
diff --git a/examples/stm32wb/src/bin/gatt_server.rs b/examples/stm32wb/src/bin/gatt_server.rs
index 80e835c1d..5ce620350 100644
--- a/examples/stm32wb/src/bin/gatt_server.rs
+++ b/examples/stm32wb/src/bin/gatt_server.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use core::time::Duration;
diff --git a/examples/stm32wb/src/bin/mac_ffd.rs b/examples/stm32wb/src/bin/mac_ffd.rs
index 881dc488d..5cd660543 100644
--- a/examples/stm32wb/src/bin/mac_ffd.rs
+++ b/examples/stm32wb/src/bin/mac_ffd.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wb/src/bin/mac_ffd_net.rs b/examples/stm32wb/src/bin/mac_ffd_net.rs
index f8c76b5a4..7a42bf577 100644
--- a/examples/stm32wb/src/bin/mac_ffd_net.rs
+++ b/examples/stm32wb/src/bin/mac_ffd_net.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
@@ -12,7 +11,7 @@ use embassy_stm32_wpan::mac::typedefs::{MacChannel, PanId, PibId};
 use embassy_stm32_wpan::mac::{self, Runner};
 use embassy_stm32_wpan::sub::mm;
 use embassy_stm32_wpan::TlMbox;
-use static_cell::make_static;
+use static_cell::StaticCell;
 use {defmt_rtt as _, panic_probe as _};
 bind_interrupts!(struct Irqs{
@@ -154,15 +153,21 @@ async fn main(spawner: Spawner) {
        .unwrap();
    defmt::info!("{:#x}", mbox.mac_subsystem.read().await.unwrap());
+    static TX1: StaticCell<[u8; 127]> = StaticCell::new();
+    static TX2: StaticCell<[u8; 127]> = StaticCell::new();
+    static TX3: StaticCell<[u8; 127]> = StaticCell::new();
+    static TX4: StaticCell<[u8; 127]> = StaticCell::new();
+    static TX5: StaticCell<[u8; 127]> = StaticCell::new();
    let tx_queue = [
-        make_static!([0u8; 127]),
+        TX1.init([0u8; 127]),
-        make_static!([0u8; 127]),
+        TX2.init([0u8; 127]),
-        make_static!([0u8; 127]),
+        TX3.init([0u8; 127]),
-        make_static!([0u8; 127]),
+        TX4.init([0u8; 127]),
-        make_static!([0u8; 127]),
+        TX5.init([0u8; 127]),
    ];
-    let runner = make_static!(Runner::new(mbox.mac_subsystem, tx_queue));
+    static RUNNER: StaticCell<Runner> = StaticCell::new();
+    let runner = RUNNER.init(Runner::new(mbox.mac_subsystem, tx_queue));
    spawner.spawn(run_mac(runner)).unwrap();
diff --git a/examples/stm32wb/src/bin/mac_rfd.rs b/examples/stm32wb/src/bin/mac_rfd.rs
index 000355de6..7949211fb 100644
--- a/examples/stm32wb/src/bin/mac_rfd.rs
+++ b/examples/stm32wb/src/bin/mac_rfd.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wb/src/bin/tl_mbox.rs b/examples/stm32wb/src/bin/tl_mbox.rs
index 9d0e0070c..cb92d462d 100644
--- a/examples/stm32wb/src/bin/tl_mbox.rs
+++ b/examples/stm32wb/src/bin/tl_mbox.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wb/src/bin/tl_mbox_ble.rs b/examples/stm32wb/src/bin/tl_mbox_ble.rs
index 12c6aeebb..2599e1151 100644
--- a/examples/stm32wb/src/bin/tl_mbox_ble.rs
+++ b/examples/stm32wb/src/bin/tl_mbox_ble.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wb/src/bin/tl_mbox_mac.rs b/examples/stm32wb/src/bin/tl_mbox_mac.rs
index f32e07d96..5d868412a 100644
--- a/examples/stm32wb/src/bin/tl_mbox_mac.rs
+++ b/examples/stm32wb/src/bin/tl_mbox_mac.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wba/Cargo.toml b/examples/stm32wba/Cargo.toml
index c97605937..84eb6c831 100644
--- a/examples/stm32wba/Cargo.toml
+++ b/examples/stm32wba/Cargo.toml
@@ -7,7 +7,7 @@ license = "MIT OR Apache-2.0"
 [dependencies]
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = [ "defmt", "stm32wba52cg", "time-driver-any", "memory-x", "exti"]  }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-net = { version = "0.2.0", path = "../../embassy-net", features = ["defmt", "udp", "proto-ipv6", "medium-ieee802154", ], optional=true }
@@ -20,7 +20,7 @@ embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
 heapless = { version = "0.8", default-features = false }
-static_cell = { version = "2", features = ["nightly"]}
+static_cell = "2"
 [profile.release]
 debug = 2
diff --git a/examples/stm32wba/src/bin/blinky.rs b/examples/stm32wba/src/bin/blinky.rs
index 6b9635e66..0d803b257 100644
--- a/examples/stm32wba/src/bin/blinky.rs
+++ b/examples/stm32wba/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wba/src/bin/button_exti.rs b/examples/stm32wba/src/bin/button_exti.rs
index ef32d4c4a..1e970fdd6 100644
--- a/examples/stm32wba/src/bin/button_exti.rs
+++ b/examples/stm32wba/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wl/Cargo.toml b/examples/stm32wl/Cargo.toml
index 070d27cb6..62c34b792 100644
--- a/examples/stm32wl/Cargo.toml
+++ b/examples/stm32wl/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 # Change stm32wl55jc-cm4 to your chip name, if necessary.
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32wl55jc-cm4", "time-driver-any", "memory-x", "unstable-pac", "exti", "chrono"] }
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["defmt"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["nightly", "arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-cortex-m", "executor-thread", "defmt", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["defmt", "defmt-timestamp-uptime", "tick-hz-32_768"] }
 embassy-embedded-hal = { version = "0.1.0", path = "../../embassy-embedded-hal" }
diff --git a/examples/stm32wl/src/bin/blinky.rs b/examples/stm32wl/src/bin/blinky.rs
index 5bd5745f0..347bd093f 100644
--- a/examples/stm32wl/src/bin/blinky.rs
+++ b/examples/stm32wl/src/bin/blinky.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wl/src/bin/button.rs b/examples/stm32wl/src/bin/button.rs
index 982a7a112..3397e5ba6 100644
--- a/examples/stm32wl/src/bin/button.rs
+++ b/examples/stm32wl/src/bin/button.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use cortex_m_rt::entry;
 use defmt::*;
@@ -13,7 +12,7 @@ fn main() -> ! {
    let p = embassy_stm32::init(Default::default());
-    let button = Input::new(p.PA0, Pull::Up);
+    let mut button = Input::new(p.PA0, Pull::Up);
    let mut led1 = Output::new(p.PB15, Level::High, Speed::Low);
    let mut led2 = Output::new(p.PB9, Level::High, Speed::Low);
diff --git a/examples/stm32wl/src/bin/button_exti.rs b/examples/stm32wl/src/bin/button_exti.rs
index 1f02db5cf..e6ad4b80b 100644
--- a/examples/stm32wl/src/bin/button_exti.rs
+++ b/examples/stm32wl/src/bin/button_exti.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wl/src/bin/flash.rs b/examples/stm32wl/src/bin/flash.rs
index 5e52d49ec..0b7417c01 100644
--- a/examples/stm32wl/src/bin/flash.rs
+++ b/examples/stm32wl/src/bin/flash.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::{info, unwrap};
 use embassy_executor::Spawner;
diff --git a/examples/stm32wl/src/bin/random.rs b/examples/stm32wl/src/bin/random.rs
index 2fd234966..3610392be 100644
--- a/examples/stm32wl/src/bin/random.rs
+++ b/examples/stm32wl/src/bin/random.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/stm32wl/src/bin/rtc.rs b/examples/stm32wl/src/bin/rtc.rs
index 4ffb0bb58..4738d5770 100644
--- a/examples/stm32wl/src/bin/rtc.rs
+++ b/examples/stm32wl/src/bin/rtc.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use chrono::{NaiveDate, NaiveDateTime};
 use defmt::*;
diff --git a/examples/stm32wl/src/bin/uart_async.rs b/examples/stm32wl/src/bin/uart_async.rs
index 44e8f83a2..8e545834c 100644
--- a/examples/stm32wl/src/bin/uart_async.rs
+++ b/examples/stm32wl/src/bin/uart_async.rs
@@ -1,6 +1,5 @@
 #![no_std]
 #![no_main]
-#![feature(type_alias_impl_trait)]
 use defmt::*;
 use embassy_executor::Spawner;
diff --git a/examples/wasm/Cargo.toml b/examples/wasm/Cargo.toml
index c96a428b9..305ebd526 100644
--- a/examples/wasm/Cargo.toml
+++ b/examples/wasm/Cargo.toml
@@ -9,7 +9,7 @@ crate-type = ["cdylib"]
 [dependencies]
 embassy-sync = { version = "0.5.0", path = "../../embassy-sync", features = ["log"] }
-embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-wasm", "executor-thread", "log", "nightly", "integrated-timers"] }
+embassy-executor = { version = "0.4.0", path = "../../embassy-executor", features = ["arch-wasm", "executor-thread", "log", "integrated-timers"] }
 embassy-time = { version = "0.2", path = "../../embassy-time", features = ["log", "wasm", ] }
 wasm-logger = "0.2.0"
diff --git a/examples/wasm/src/lib.rs b/examples/wasm/src/lib.rs
index 1141096fb..71cf980dd 100644
--- a/examples/wasm/src/lib.rs
+++ b/examples/wasm/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(type_alias_impl_trait)]
 use embassy_executor::Spawner;
 use embassy_time::Timer;