From 9854e0c0a84c03d5e07dda0586002ff3d354303c Mon Sep 17 00:00:00 2001
From: Joakim Hulthe <joakim@hulthe.net>
Date: Mon, 12 Jun 2023 17:39:07 +0200
Subject: [PATCH] stuff

---
 .cargo/{config => config.toml}          |    0
 .gitignore                              |    2 +-
 left/Cargo.lock                         | 1798 +++++++++++++++++++++++
 left/Cargo.toml                         |   29 +
 build.rs => left/build.rs               |    7 +-
 layers-left.ron => left/layers.ron      |    6 +-
 left/src/layers.pc                      |  Bin 0 -> 109 bytes
 src/bin/left.rs => left/src/main.rs     |   19 +-
 lib/Cargo.lock                          | 1781 ++++++++++++++++++++++
 Cargo.toml => lib/Cargo.toml            |   20 +-
 lib/memory.x                            |   15 +
 {src => lib/src}/.gitignore             |    0
 {src => lib/src}/allocator.rs           |    0
 {src => lib/src}/board.rs               |    0
 {src => lib/src}/defmt.rs               |    0
 lib/src/event.rs                        |   60 +
 lib/src/interrupts.rs                   |   11 +
 {src => lib/src}/keyboard.rs            |  142 +-
 {src => lib/src}/keyboard/lights.rs     |  100 +-
 lib/src/keypress_handler.rs             |  397 +++++
 {src => lib/src}/led.rs                 |    0
 lib/src/lib.rs                          |   32 +
 {src => lib/src}/lights.rs              |    2 +-
 {src => lib/src}/logger.rs              |    6 +-
 {src => lib/src}/neopixel.pio           |    0
 {src => lib/src}/neopixel.rs            |    0
 {src => lib/src}/neopixel2.pio          |    0
 {src => lib/src}/panic_handler.rs       |    0
 lib/src/rgb.rs                          |   58 +
 {src => lib/src}/rtt.rs                 |    0
 {src => lib/src}/uart.rs                |    7 +-
 {src => lib/src}/usb.rs                 |    2 +-
 {src => lib/src}/usb/keyboard.rs        |  139 +-
 {src => lib/src}/usb/keyboard/report.rs |   41 +-
 {src => lib/src}/usb/logger.rs          |   24 +-
 {src => lib/src}/util.rs                |    2 +-
 {src => lib/src}/ws2812.rs              |   47 +-
 Cargo.lock => right/Cargo.lock          |  218 ++-
 right/Cargo.toml                        |   29 +
 right/build.rs                          |   59 +
 layers-right.ron => right/layers.ron    |    6 +-
 right/src/layers.pc                     |  Bin 0 -> 105 bytes
 src/bin/right.rs => right/src/main.rs   |   18 +-
 src/bin/.gitignore                      |    1 -
 src/lib.rs                              |   30 -
 45 files changed, 4708 insertions(+), 400 deletions(-)
 rename .cargo/{config => config.toml} (100%)
 create mode 100644 left/Cargo.lock
 create mode 100644 left/Cargo.toml
 rename build.rs => left/build.rs (89%)
 rename layers-left.ron => left/layers.ron (95%)
 create mode 100644 left/src/layers.pc
 rename src/bin/left.rs => left/src/main.rs (90%)
 create mode 100644 lib/Cargo.lock
 rename Cargo.toml => lib/Cargo.toml (73%)
 create mode 100644 lib/memory.x
 rename {src => lib/src}/.gitignore (100%)
 rename {src => lib/src}/allocator.rs (100%)
 rename {src => lib/src}/board.rs (100%)
 rename {src => lib/src}/defmt.rs (100%)
 create mode 100644 lib/src/event.rs
 create mode 100644 lib/src/interrupts.rs
 rename {src => lib/src}/keyboard.rs (67%)
 rename {src => lib/src}/keyboard/lights.rs (68%)
 create mode 100644 lib/src/keypress_handler.rs
 rename {src => lib/src}/led.rs (100%)
 create mode 100644 lib/src/lib.rs
 rename {src => lib/src}/lights.rs (96%)
 rename {src => lib/src}/logger.rs (91%)
 rename {src => lib/src}/neopixel.pio (100%)
 rename {src => lib/src}/neopixel.rs (100%)
 rename {src => lib/src}/neopixel2.pio (100%)
 rename {src => lib/src}/panic_handler.rs (100%)
 create mode 100644 lib/src/rgb.rs
 rename {src => lib/src}/rtt.rs (100%)
 rename {src => lib/src}/uart.rs (97%)
 rename {src => lib/src}/usb.rs (97%)
 rename {src => lib/src}/usb/keyboard.rs (55%)
 rename {src => lib/src}/usb/keyboard/report.rs (78%)
 rename {src => lib/src}/usb/logger.rs (67%)
 rename {src => lib/src}/util.rs (96%)
 rename {src => lib/src}/ws2812.rs (73%)
 rename Cargo.lock => right/Cargo.lock (88%)
 create mode 100644 right/Cargo.toml
 create mode 100644 right/build.rs
 rename layers-right.ron => right/layers.ron (94%)
 create mode 100644 right/src/layers.pc
 rename src/bin/right.rs => right/src/main.rs (90%)
 delete mode 100644 src/bin/.gitignore
 delete mode 100644 src/lib.rs

diff --git a/.cargo/config b/.cargo/config.toml
similarity index 100%
rename from .cargo/config
rename to .cargo/config.toml
diff --git a/.gitignore b/.gitignore
index ea8c4bf..eb5a316 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-/target
+target
diff --git a/left/Cargo.lock b/left/Cargo.lock
new file mode 100644
index 0000000..dd71daf
--- /dev/null
+++ b/left/Cargo.lock
@@ -0,0 +1,1798 @@
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diff --git a/left/Cargo.toml b/left/Cargo.toml
new file mode 100644
index 0000000..979397f
--- /dev/null
+++ b/left/Cargo.toml
@@ -0,0 +1,29 @@
+[package]
+name = "tangentbord1-left"
+version = "0.1.0"
+authors = ["Joakim Hulthe <joakim@hulthe.net>"]
+description = "Keyboard firmware"
+edition = "2021"
+
+[dependencies.tangentbord1]
+path = "../lib"
+package = "tangentbord1-lib"
+
+[dependencies]
+tgnt = { git = "https://git.nubo.sh/hulthe/tgnt.git", default-features = false }
+cortex-m-rt = "0.7"
+embassy-rp = { git = "https://github.com/embassy-rs/embassy.git", features = ["log", "nightly", "unstable-traits", "unstable-pac", "time-driver", "critical-section-impl"] }
+embassy-executor = { git = "https://github.com/embassy-rs/embassy.git", features = ["arch-cortex-m", "log", "executor-thread", "nightly", "integrated-timers" ] }
+embassy-sync = { git = "https://github.com/embassy-rs/embassy.git", features = ["log", "nightly"] }
+embassy-time = { git = "https://github.com/embassy-rs/embassy.git", features = ["log"] }
+embassy-futures = { git = "https://github.com/embassy-rs/embassy.git", features = ["log"] }
+log = "0.4.17"
+postcard = { version = "1.0.4", features = ["alloc"] }
+
+[patch."https://git.nubo.sh/hulthe/tgnt.git"]
+tgnt = { path = "../../tgnt" }
+
+[build-dependencies]
+tgnt = { git = "https://git.nubo.sh/hulthe/tgnt.git", default-features = false }
+ron = "0.8.0"
+postcard = { version = "1", features = ["use-std"] }
diff --git a/build.rs b/left/build.rs
similarity index 89%
rename from build.rs
rename to left/build.rs
index e72cd13..43337e4 100644
--- a/build.rs
+++ b/left/build.rs
@@ -17,8 +17,7 @@ use tgnt::layer::Layer;
 
 fn main() {
     memory();
-    serialize_layout("./layers-left.ron", "./src/bin/layers-left.pc");
-    serialize_layout("./layers-right.ron", "./src/bin/layers-right.pc");
+    serialize_layout("./layers.ron", "./src/layers.pc");
 }
 
 fn memory() {
@@ -27,7 +26,7 @@ fn memory() {
     let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
     File::create(out.join("memory.x"))
         .unwrap()
-        .write_all(include_bytes!("memory.x"))
+        .write_all(include_bytes!("../memory.x"))
         .unwrap();
     println!("cargo:rustc-link-search={}", out.display());
 
@@ -35,7 +34,7 @@ fn memory() {
     // 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:rerun-if-changed=../memory.x");
 
     // --nmagic turns off page alignment of sections (which saves flash space)
     println!("cargo:rustc-link-arg-bins=--nmagic");
diff --git a/layers-left.ron b/left/layers.ron
similarity index 95%
rename from layers-left.ron
rename to left/layers.ron
index 8819ba8..c28fca1 100644
--- a/layers-left.ron
+++ b/left/layers.ron
@@ -25,7 +25,7 @@
 			// Thumbpad
 			Key(Backspace),
 			Key(Space),
-			NextLayer,
+			HoldLayer(1),
 		],
 	),
 	Layer(
@@ -54,7 +54,7 @@
 			// Thumbpad
 			Key(Backspace),
 			Key(Space),
-			NextLayer,
+			HoldLayer(1),
 		],
 	),
 	Layer(
@@ -83,7 +83,7 @@
 			// Thumbpad
 			Key(Backspace),
 			Key(Space),
-			NextLayer,
+			HoldLayer(1),
 		],
 	),
 ]
diff --git a/left/src/layers.pc b/left/src/layers.pc
new file mode 100644
index 0000000000000000000000000000000000000000..5f297699771721e14fe6613a39653104a51a6290
GIT binary patch
literal 109
zcmYMsOAdli5Cze$+lE#LVh9OtKtaXu-5s)bc}^JDNqNDYk%^p}%yp3ts5FjrTsd*3
k;z5&<;LMAGNgvl!dZX5;BZ5A5w6O9GbCY4V)dc>FA5NDBkN^Mx

literal 0
HcmV?d00001

diff --git a/src/bin/left.rs b/left/src/main.rs
similarity index 90%
rename from src/bin/left.rs
rename to left/src/main.rs
index bbbe2ad..6c820fc 100644
--- a/src/bin/left.rs
+++ b/left/src/main.rs
@@ -3,6 +3,7 @@
 #![no_std]
 #![no_main]
 #![feature(type_alias_impl_trait)]
+#![cfg(target_arch = "arm")]
 
 extern crate alloc;
 extern crate cortex_m_rt;
@@ -12,12 +13,16 @@ use embassy_executor::Spawner;
 use embassy_rp::gpio::{Level, Output, Pin};
 use embassy_time::{Duration, Timer};
 use log::error;
-use tangentbord1::board::Board;
-use tangentbord1::keyboard::{Half, KeyboardConfig};
-use tangentbord1::logger::Logger;
-use tangentbord1::util::{stall, wheel};
-use tangentbord1::ws2812::{Rgb, Ws2812};
-use tangentbord1::{allocator, rtt, uart, usb};
+use tangentbord1::{
+    board::Board,
+    event::Half,
+    keyboard::KeyboardConfig,
+    logger::Logger,
+    rgb::Rgb,
+    util::{stall, wheel},
+    ws2812::Ws2812,
+    {allocator, rtt, uart, usb},
+};
 use tgnt::layer::Layer;
 
 #[embassy_executor::main]
@@ -48,7 +53,7 @@ async fn main(_spawner: Spawner) {
 
     neopixel.write(&[Rgb::new(0xFF, 0x00, 0x00)]).await;
 
-    let layers = include_bytes!("layers-left.pc");
+    let layers = include_bytes!("layers.pc");
     let Ok(layers): Result<Vec<Layer>, _> = postcard::from_bytes(layers) else {
         log::error!("Failed to deserialize layer config");
         stall().await
diff --git a/lib/Cargo.lock b/lib/Cargo.lock
new file mode 100644
index 0000000..87fdc17
--- /dev/null
+++ b/lib/Cargo.lock
@@ -0,0 +1,1781 @@
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+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
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+ "windows-targets",
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+ "windows_aarch64_msvc 0.48.0",
+ "windows_i686_gnu 0.48.0",
+ "windows_i686_msvc 0.48.0",
+ "windows_x86_64_gnu 0.48.0",
+ "windows_x86_64_gnullvm 0.48.0",
+ "windows_x86_64_msvc 0.48.0",
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+
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+version = "0.42.2"
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+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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diff --git a/Cargo.toml b/lib/Cargo.toml
similarity index 73%
rename from Cargo.toml
rename to lib/Cargo.toml
index 70adf60..3877a7c 100644
--- a/Cargo.toml
+++ b/lib/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "tangentbord1"
+name = "tangentbord1-lib"
 version = "0.1.0"
 authors = ["Joakim Hulthe <joakim@hulthe.net>"]
 description = "Keyboard firmware"
@@ -14,15 +14,14 @@ usb-device = "0.2.9"
 usbd-hid = "0.6.1"
 static_cell = "1.0.0"
 embedded-io = { version = "*", features = ["async"] }
-futures = { version = "0.3", default-features = false }
-embassy-executor = { git = "https://github.com/embassy-rs/embassy.git", features = ["log", "arch-cortex-m", "executor-thread", "nightly", "integrated-timers" ] }
+futures = { version = "0.3", default-features = false, features = ["async-await"] }
+embassy-executor = { git = "https://github.com/embassy-rs/embassy.git", features = ["log", "executor-thread", "nightly", "integrated-timers" ] }
 embassy-sync = { git = "https://github.com/embassy-rs/embassy.git", features = ["log", "nightly"] }
 embassy-time = { git = "https://github.com/embassy-rs/embassy.git", features = ["log"] }
 embassy-futures = { git = "https://github.com/embassy-rs/embassy.git", features = ["log"] }
 embassy-usb = { git = "https://github.com/embassy-rs/embassy.git", features = ["usbd-hid"] }
 embassy-usb-logger = { git = "https://github.com/embassy-rs/embassy.git", features = [] }
 embassy-usb-driver = { git = "https://github.com/embassy-rs/embassy.git", features = [] }
-embassy-rp = { git = "https://github.com/embassy-rs/embassy.git", features = ["log", "nightly", "unstable-traits", "unstable-pac", "time-driver", "critical-section-impl"] }
 log = "0.4.17"
 pio = "0.2.1"
 pio-proc = "0.2.1"
@@ -39,8 +38,17 @@ crc-any = "2.4.3"
 serde = { version = "1.0.163", default-features = false, features = ["derive"] }
 bytemuck = { version = "1.13.1", features = ["derive"] }
 
-#[patch."https://git.nubo.sh/hulthe/tgnt.git"]
-#tgnt = { path = "../tgnt" }
+[target.'cfg(target_arch = "x86_64")'.dependencies]
+embassy-executor = { git = "https://github.com/embassy-rs/embassy.git", features = ["arch-std"] }
+embassy-time = { git = "https://github.com/embassy-rs/embassy.git", features = ["std", "generic-queue"] }
+simple_logger = "4"
+
+[target.thumbv6m-none-eabi.dependencies]
+embassy-rp = { git = "https://github.com/embassy-rs/embassy.git", features = ["log", "nightly", "unstable-traits", "unstable-pac", "time-driver", "critical-section-impl"] }
+embassy-executor = { git = "https://github.com/embassy-rs/embassy.git", features = ["arch-cortex-m"] }
+
+[patch."https://git.nubo.sh/hulthe/tgnt.git"]
+tgnt = { path = "../../tgnt" }
 
 [build-dependencies]
 tgnt = { git = "https://git.nubo.sh/hulthe/tgnt.git", default-features = false }
diff --git a/lib/memory.x b/lib/memory.x
new file mode 100644
index 0000000..4077aab
--- /dev/null
+++ b/lib/memory.x
@@ -0,0 +1,15 @@
+MEMORY {
+    BOOT2 : ORIGIN = 0x10000000, LENGTH = 0x100
+    FLASH : ORIGIN = 0x10000100, LENGTH = 2048K - 0x100
+    RAM   : ORIGIN = 0x20000000, LENGTH = 256K
+}
+
+EXTERN(BOOT2_FIRMWARE)
+
+SECTIONS {
+    /* ### Boot loader */
+    .boot2 ORIGIN(BOOT2) :
+    {
+        KEEP(*(.boot2));
+    } > BOOT2
+} INSERT BEFORE .text;
diff --git a/src/.gitignore b/lib/src/.gitignore
similarity index 100%
rename from src/.gitignore
rename to lib/src/.gitignore
diff --git a/src/allocator.rs b/lib/src/allocator.rs
similarity index 100%
rename from src/allocator.rs
rename to lib/src/allocator.rs
diff --git a/src/board.rs b/lib/src/board.rs
similarity index 100%
rename from src/board.rs
rename to lib/src/board.rs
diff --git a/src/defmt.rs b/lib/src/defmt.rs
similarity index 100%
rename from src/defmt.rs
rename to lib/src/defmt.rs
diff --git a/lib/src/event.rs b/lib/src/event.rs
new file mode 100644
index 0000000..9483cc0
--- /dev/null
+++ b/lib/src/event.rs
@@ -0,0 +1,60 @@
+use core::time::Duration;
+
+use serde::{Deserialize, Serialize};
+use tgnt::{button::Button, keys::Key};
+
+pub mod switch {
+    use super::*;
+
+    #[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
+    /// A switch was pressed or released
+    ///
+    /// This event is triggered by tasks that monitor switches.
+    pub struct Event {
+        /// The keyboard half that triggered the event.
+        pub source: Half,
+
+        /// The index of the button that triggered the event.
+        pub source_button: usize,
+
+        pub kind: EventKind,
+    }
+
+    #[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
+    pub enum EventKind {
+        Press {
+            button: Button,
+        },
+        Release {
+            button: Button,
+
+            /// The duration that the button was held down for
+            after: Duration,
+        },
+    }
+}
+
+pub mod button {
+    use tgnt::button::Modifier;
+
+    use super::*;
+
+    /// A usb keyboard button was pressed or released.
+    ///
+    /// This is a lower-level event than a [SwitchEvent], as things like ModTap and Compose are
+    /// converted to Presses and Releases.
+    #[derive(Clone, Debug, PartialEq, Eq)]
+    pub enum Event {
+        PressKey(Key),
+        ReleaseKey(Key),
+        PressMod(Modifier),
+        ReleaseMod(Modifier),
+    }
+}
+
+/// A keyboard half.
+#[derive(Copy, Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
+pub enum Half {
+    Left,
+    Right,
+}
diff --git a/lib/src/interrupts.rs b/lib/src/interrupts.rs
new file mode 100644
index 0000000..3f004cb
--- /dev/null
+++ b/lib/src/interrupts.rs
@@ -0,0 +1,11 @@
+use embassy_rp::{
+    bind_interrupts,
+    peripherals::{UART0, USB},
+};
+
+bind_interrupts! {
+    pub struct Irqs {
+        UART0_IRQ => embassy_rp::uart::BufferedInterruptHandler<UART0>;
+        USBCTRL_IRQ => embassy_rp::usb::InterruptHandler<USB>;
+    }
+}
diff --git a/src/keyboard.rs b/lib/src/keyboard.rs
similarity index 67%
rename from src/keyboard.rs
rename to lib/src/keyboard.rs
index 87ff0fb..36bc84e 100644
--- a/src/keyboard.rs
+++ b/lib/src/keyboard.rs
@@ -9,18 +9,20 @@ use embassy_rp::{
     peripherals::PIO1,
 };
 use embassy_sync::pubsub::{ImmediatePublisher, PubSubChannel, Subscriber};
-use embassy_time::{Duration, Timer};
-use futures::{select_biased, FutureExt};
+use embassy_time::{Duration, Instant};
 use log::{debug, error, info, warn};
-use serde::{Deserialize, Serialize};
 use static_cell::StaticCell;
-use tgnt::{
-    button::{Button, Modifier},
-    keys::Key,
-    layer::Layer,
-};
+use tgnt::{button::Button, layer::Layer};
 
-use crate::{lights::Lights, util::CS, ws2812::Ws2812};
+use crate::{
+    event::{
+        switch::{Event, EventKind},
+        Half,
+    },
+    lights::Lights,
+    util::CS,
+    ws2812::Ws2812,
+};
 
 pub struct KeyboardConfig {
     /// Which board is this.
@@ -43,41 +45,14 @@ struct State {
     lights: Lights<PIO1, SWITCH_COUNT>,
 }
 
-/// A keyboard half.
-#[derive(Copy, Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
-pub enum Half {
-    Left,
-    Right,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct Event {
-    /// The keyboard half that triggered the event.
-    pub source: Half,
-
-    /// The index of the button that triggered the event.
-    pub source_button: usize,
-
-    pub kind: EventKind,
-}
-
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub enum EventKind {
-    PressKey(Key),
-    ReleaseKey(Key),
-    PressModifier(Modifier),
-    ReleaseModifier(Modifier),
-    SetLayer(u16),
-}
-
 pub const KB_SUBSCRIBERS: usize = 2;
 const ACTUAL_KB_SUBSCRIBERS: usize = KB_SUBSCRIBERS + 2;
 const KB_EVENT_CAP: usize = 128;
 static KB_EVENTS: PubSubChannel<CS, Event, KB_EVENT_CAP, ACTUAL_KB_SUBSCRIBERS, 0> =
     PubSubChannel::new();
 pub struct KbEvents {
-    subscriber: Subscriber<'static, CS, Event, KB_EVENT_CAP, ACTUAL_KB_SUBSCRIBERS, 0>,
-    publisher: ImmediatePublisher<'static, CS, Event, KB_EVENT_CAP, ACTUAL_KB_SUBSCRIBERS, 0>,
+    pub subscriber: Subscriber<'static, CS, Event, KB_EVENT_CAP, ACTUAL_KB_SUBSCRIBERS, 0>,
+    pub publisher: ImmediatePublisher<'static, CS, Event, KB_EVENT_CAP, ACTUAL_KB_SUBSCRIBERS, 0>,
 }
 
 pub struct KbEventsTx<'a> {
@@ -183,8 +158,8 @@ impl KbEventsTx<'_> {
     }
 }
 
-const MOD_TAP_TIME: Duration = Duration::from_millis(150);
-const SWITCH_COUNT: usize = 18;
+pub const MOD_TAP_TIME: Duration = Duration::from_millis(150);
+pub const SWITCH_COUNT: usize = 18;
 
 /// Task for monitoring a single switch pin, and handling button presses.
 #[embassy_executor::task(pool_size = 18)]
@@ -195,6 +170,7 @@ async fn switch_task(switch_num: usize, pin: AnyPin, state: &'static State) -> !
     loop {
         // pins are pull-up, so when the switch is pressed they are brought low.
         pin.wait_for_low().await;
+        let pressed_at = Instant::now();
 
         // TODO: do we need debouncing?
 
@@ -219,72 +195,54 @@ async fn switch_task(switch_num: usize, pin: AnyPin, state: &'static State) -> !
 
         debug!("switch {switch_num} button {button:?} pressed");
 
-        let wait_for_release = async {
-            pin.wait_for_high().await;
-            debug!("switch {switch_num} button {button:?} released");
-        };
-
         let ev = |kind| Event {
             source: state.half,
             source_button: switch_num,
             kind,
         };
 
-        use EventKind::*;
-        match button {
-            &Button::Key(key) => {
-                events.publish_immediate(ev(PressKey(key)));
-                wait_for_release.await;
-                events.publish_immediate(ev(ReleaseKey(key)));
-                continue;
-            }
-            &Button::Mod(modifier) => {
-                events.publish_immediate(ev(PressModifier(modifier)));
-                wait_for_release.await;
-                events.publish_immediate(ev(ReleaseModifier(modifier)));
-                continue;
-            }
-            &Button::ModTap(key, modifier) => {
-                select_biased! {
-                    _ = Timer::after(MOD_TAP_TIME).fuse() => {
-                        events.publish_immediate(ev(PressModifier(modifier)));
-                        pin.wait_for_high().await;
-                        events.publish_immediate(ev(ReleaseModifier(modifier)));
-                        debug!("switch {switch_num} button {button:?} released");
-                        continue;
-                    }
-                    _ = wait_for_release.fuse() => {
-                        events.publish_immediate(ev(PressKey(key)));
-                        Timer::after(Duration::from_millis(20)).await;
-                        events.publish_immediate(ev(ReleaseKey(key)));
-                        continue;
-                    }
-                }
-            }
-            Button::NextLayer => {
-                let next_layer = (current_layer + 1) % layer_count;
-                events.publish_immediate(ev(SetLayer(next_layer)));
-                debug!("switched to layer {next_layer}");
-            }
-            Button::PrevLayer => {
-                let prev_layer = current_layer.checked_sub(1).unwrap_or(layer_count - 1);
-                events.publish_immediate(ev(SetLayer(prev_layer)));
-                debug!("switched to layer {prev_layer}");
-            }
-            Button::None => {}
-        }
+        events.publish_immediate(ev(EventKind::Press {
+            button: button.clone(),
+        }));
 
-        wait_for_release.await;
+        pin.wait_for_high().await;
+        let released_after = pressed_at.elapsed();
+
+        debug!("switch {switch_num} button {button:?} released");
+
+        events.publish_immediate(ev(EventKind::Release {
+            button: button.clone(),
+            after: released_after.into(),
+        }));
     }
 }
 
 #[embassy_executor::task]
 async fn layer_switch_task(mut events: KbEvents, state: &'static State) {
+    let layer_count = state.layers.len() as u16;
+    let Some(last_layer) = layer_count.checked_sub(1) else {
+        error!("no layers specified");
+        return;
+    };
+
     loop {
         let event = events.recv().await;
-        if let EventKind::SetLayer(new_layer) = event.kind {
-            state.current_layer.store(new_layer, Ordering::Relaxed);
-        }
+        let layer = state.current_layer.load(Ordering::Relaxed);
+        let new_layer = match event.kind {
+            EventKind::Press { button } => match button {
+                Button::NextLayer => layer.wrapping_add(1) % layer_count,
+                Button::PrevLayer => layer.checked_sub(1).unwrap_or(last_layer),
+                Button::HoldLayer(l) => layer.wrapping_add(l) % layer_count,
+                _ => continue,
+            },
+            EventKind::Release { button, .. } => match button {
+                Button::HoldLayer(l) => layer.checked_sub(l).unwrap_or(last_layer),
+                _ => continue,
+            },
+        };
+
+        state.current_layer.store(new_layer, Ordering::Relaxed);
+        debug!("switched to layer {new_layer}");
     }
 }
 
diff --git a/src/keyboard/lights.rs b/lib/src/keyboard/lights.rs
similarity index 68%
rename from src/keyboard/lights.rs
rename to lib/src/keyboard/lights.rs
index dd019c7..3a0f9e9 100644
--- a/src/keyboard/lights.rs
+++ b/lib/src/keyboard/lights.rs
@@ -1,9 +1,12 @@
 use core::cmp::min;
 
+use atomic_polyfill::Ordering;
+use embassy_futures::yield_now;
 use embassy_time::{Duration, Instant, Timer};
 use futures::{select_biased, FutureExt};
+use tgnt::button::Button;
 
-use crate::{util::wheel, ws2812::Rgb};
+use crate::{rgb::Rgb, util::wheel};
 
 use super::{Event, EventKind, KbEvents, State, SWITCH_COUNT};
 
@@ -140,57 +143,54 @@ async fn handle_event(
     state: &'static State,
     lights: &mut [LightState; SWITCH_COUNT],
 ) {
-    match event.kind {
-        EventKind::PressKey(_) => {
-            if state.half != event.source {
-                return;
-            }
-            let Some(light) = lights.get_mut(event.source_button) else { return; };
-            *light = LightState::Solid(Rgb::new(0, 150, 0));
-        }
-        EventKind::PressModifier(_) => {
-            if state.half != event.source {
-                return;
-            }
-            let Some(light) = lights.get_mut(event.source_button) else { return; };
-            *light = LightState::Solid(Rgb::new(0, 0, 150));
-        }
-        EventKind::ReleaseKey(_) | EventKind::ReleaseModifier(_) => {
-            if state.half != event.source {
-                return;
-            }
-            let Some(light) = lights.get_mut(event.source_button) else { return; };
-            *light = LightState::FadeBy(0.85);
-        }
-        EventKind::SetLayer(layer) => {
-            let layer = min(layer, state.layers.len().saturating_sub(1) as u16);
-            let buttons_to_light_up = if state.layers.len() <= 3 {
-                match layer {
-                    0 => [0, 1, 2, 3, 4].as_ref(),
-                    1 => &[5, 6, 7, 8, 9],
-                    2 => &[10, 11, 12, 13, 14],
-                    _ => &[],
-                }
-            } else {
-                match layer {
-                    0 => [0, 5, 10].as_ref(),
-                    1 => &[1, 6, 11],
-                    2 => &[2, 7, 12],
-                    3 => &[3, 8, 13],
-                    4 => &[4, 9, 14],
-                    _ => &[],
-                }
-            };
+    let rgb = match event.kind {
+        EventKind::Press { button } => match button {
+            Button::Key(..) => LightState::Solid(Rgb::new(0, 150, 0)),
+            Button::Mod(..) => LightState::Solid(Rgb::new(0, 0, 150)),
+            Button::ModTap(..) => LightState::Solid(Rgb::new(0, 0, 150)),
+            Button::Compose(..) => LightState::Solid(Rgb::new(0, 100, 100)),
+            Button::NextLayer | Button::PrevLayer => {
+                yield_now().await; // dirty hack to make sure layer_switch_task gets to run first
+                let layer = state.current_layer.load(Ordering::Relaxed);
+                let layer = min(layer, state.layers.len().saturating_sub(1) as u16);
+                let buttons_to_light_up = if state.layers.len() <= 3 {
+                    match layer {
+                        0 => [0, 1, 2, 3, 4].as_ref(),
+                        1 => &[5, 6, 7, 8, 9],
+                        2 => &[10, 11, 12, 13, 14],
+                        _ => &[],
+                    }
+                } else {
+                    match layer {
+                        0 => [0, 5, 10].as_ref(),
+                        1 => &[1, 6, 11],
+                        2 => &[2, 7, 12],
+                        3 => &[3, 8, 13],
+                        4 => &[4, 9, 14],
+                        _ => &[],
+                    }
+                };
 
-            let solid_until = Instant::now() + Duration::from_millis(200);
-            for &button in buttons_to_light_up {
-                let Some(light) = lights.get_mut(button) else { continue; };
-                *light = LightState::SolidThenFade {
-                    color: Rgb::new(120, 0, 120),
-                    solid_until,
-                    fade_by: 0.85,
+                let solid_until = Instant::now() + Duration::from_millis(200);
+                for &button in buttons_to_light_up {
+                    let Some(light) = lights.get_mut(button) else { continue; };
+                    *light = LightState::SolidThenFade {
+                        color: Rgb::new(120, 0, 120),
+                        solid_until,
+                        fade_by: 0.85,
+                    }
                 }
+                LightState::Solid(Rgb::new(100, 0, 100))
             }
-        }
+            _ => LightState::Solid(Rgb::new(150, 0, 0)),
+        },
+        EventKind::Release { .. } => LightState::FadeBy(0.85),
+    };
+
+    if event.source != state.half {
+        return;
     }
+
+    let Some(light) = lights.get_mut(event.source_button) else { return; };
+    *light = rgb;
 }
diff --git a/lib/src/keypress_handler.rs b/lib/src/keypress_handler.rs
new file mode 100644
index 0000000..8dd4312
--- /dev/null
+++ b/lib/src/keypress_handler.rs
@@ -0,0 +1,397 @@
+use core::future::pending;
+
+use embassy_sync::pubsub::{publisher::Pub, subscriber::Sub, PubSubBehavior, WaitResult};
+use embassy_time::{Duration, Instant, Timer};
+use futures::FutureExt;
+use heapless::Deque;
+use log::{debug, error};
+use tgnt::button::Button;
+
+use crate::event::{button, switch, Half};
+
+// TODO
+const MOD_TAP_TIME: Duration = Duration::from_millis(150);
+const SWITCH_COUNT: usize = 18;
+
+/// This function perpetually converts between [switch::Event]s and [button::Event]s.
+///
+/// Call it from a dedicated task.
+pub async fn keypress_handler(
+    input: &mut Sub<'_, impl PubSubBehavior<switch::Event>, switch::Event>,
+    output: &mut Pub<'_, impl PubSubBehavior<button::Event>, button::Event>,
+) -> ! {
+    type SwitchIndex = usize;
+    #[derive(Debug)]
+    struct PressEvent {
+        source_button: SwitchIndex,
+        source_half: Half,
+        button: Button,
+        time: Instant,
+    }
+
+    async fn slow_press(
+        output: &mut Pub<'_, impl PubSubBehavior<button::Event>, button::Event>,
+        button: &Button,
+    ) {
+        let event = match button {
+            &Button::Mod(m) | &Button::ModTap(_, m) => button::Event::PressMod(m),
+            &Button::Key(k) => button::Event::PressKey(k),
+            _ => return,
+        };
+        output.publish_immediate(event);
+    }
+
+    async fn slow_release(
+        output: &mut Pub<'_, impl PubSubBehavior<button::Event>, button::Event>,
+        button: &Button,
+    ) {
+        let event = match button {
+            &Button::Mod(m) | &Button::ModTap(_, m) => button::Event::ReleaseMod(m),
+            &Button::Key(k) => button::Event::ReleaseKey(k),
+            _ => return,
+        };
+        output.publish_immediate(event);
+    }
+
+    // queue of button presses that are waiting for ModTap
+    let mut queue = Deque::<PressEvent, { 2 * SWITCH_COUNT }>::new();
+    let queue = &mut queue;
+
+    loop {
+        // create a future that waits for the next ModTap to time out
+        let modtap_timeout = async {
+            loop {
+                if let Some(event) = queue.front() {
+                    let Button::ModTap(..) = event.button else {
+                        error!("first element in queue wasn't a modtap, wtf?");
+                        let _ = queue.pop_front();
+                        continue;
+                    };
+
+                    let timeout = event.time + MOD_TAP_TIME;
+                    Timer::at(timeout).await;
+                    return queue.pop_front().unwrap();
+                } else {
+                    // if the queue is empty, never return.
+                    return pending().await;
+                }
+            }
+        };
+
+        let event = futures::select_biased! {
+            event = input.next_message().fuse() => event,
+            event = modtap_timeout.fuse() => {
+                // first element in queue timed out, and will be treated as a Mod
+                let &Button::ModTap(..) = &event.button else {
+                    error!("first element in queue wasn't a modtap, wtf?");
+                    continue;
+                };
+                slow_press(output, &event.button).await;
+
+                loop {
+                    let Some(event) = queue.pop_front() else { break };
+
+                    // resolve events until we encounter another ModTap,
+                    // then put it back in the queue and stop
+                    if let Button::ModTap(..) = &event.button {
+                        queue.push_front(event).expect("we just popped, the queue can't be full");
+                        break;
+                    }
+                    slow_press(output, &event.button).await;
+                }
+
+                continue;
+            },
+        };
+
+        let WaitResult::Message(event) = event else {
+            error!("lagged");
+            continue;
+        };
+
+        let time = Instant::now();
+        debug!("event: {:?}", event.kind);
+        match event.kind {
+            switch::EventKind::Press { button } => {
+                let insert = |queue: &mut Deque<_, 36>, button| {
+                    if let Some(_queued) = queue
+                        .iter()
+                        .find(|queued: &&PressEvent| queued.source_button == event.source_button)
+                        .filter(|queued| queued.source_half == event.source)
+                    {
+                        error!("tried to add PressEvent to queue twice");
+                    } else if queue
+                        .push_back(PressEvent {
+                            source_half: event.source,
+                            source_button: event.source_button,
+                            button,
+                            time,
+                        })
+                        .is_err()
+                    {
+                        error!("button queue full. this shouldn't happen.");
+                    }
+                };
+
+                match button {
+                    Button::ModTap(_, _) => {
+                        debug!("adding modtap to queue");
+                        // add event to queue
+                        insert(queue, button);
+                    }
+                    Button::Mod(m) => {
+                        // if events in queue, also add to queue maybe?
+                        // TODO
+                    }
+                    Button::Key(_) => {
+                        if queue.is_empty() {
+                            debug!("sending key now");
+                            // otherwise, send immediately
+                            slow_press(output, &button).await;
+                        } else {
+                            debug!("adding key to queue");
+                            // if events in queue, also add to queue
+                            insert(queue, button);
+                        }
+                    }
+                    Button::Compose(..) => {
+                        if queue.is_empty() {
+                            // otherwise, send immediately
+                            // TODO
+                        } else {
+                            // if events in queue, also add to queue
+                            insert(queue, button);
+                        }
+                    }
+                    _ => {}
+                }
+            }
+            switch::EventKind::Release { button, .. } => {
+                let position_in_queue = queue
+                    .iter()
+                    .enumerate()
+                    .find(|(_, queued)| queued.source_button == event.source_button)
+                    .map(|(i, _)| i);
+
+                match button {
+                    Button::ModTap(k, _) => {
+                        // check if modtap in queue
+                        if let Some(position_in_queue) = position_in_queue {
+                            // If the modtap was still in the queue, it hasn't been resolved as a mod
+                            // yet. Therefore, it is a Tap. Resolve all ModTaps before this one as Mods
+                            debug!("modtap was still in queue");
+                            for _ in 0..position_in_queue {
+                                let prev_event = queue.pop_front().unwrap();
+                                debug!("pressing earlier event {:?}", prev_event);
+                                slow_press(output, &prev_event.button).await;
+                            }
+                            let _ = queue.pop_front();
+                            debug!("pressing modtap as key");
+                            slow_press(output, &Button::Key(k)).await;
+                            slow_release(output, &Button::Key(k)).await;
+                        } else {
+                            // If the ModTap wasn't in the queue, it has already been resolved as a Mod.
+                            debug!("modtap wasn't in queue, releasing");
+                            slow_release(output, &button).await;
+                        };
+                    }
+                    Button::Mod(m) => {
+                        debug!("mod not implemented yet");
+                        // TODO
+                    }
+                    Button::Key(_) => {
+                        // if this press event was in queue, resolve all ModTaps before in queue as Mods
+                        // otherwise, just resolve this
+                        if let Some(position_in_queue) = position_in_queue {
+                            debug!(
+                                "key was in queue, pressing all events up to and including this"
+                            );
+                            for _ in 0..=position_in_queue {
+                                let prev_event = queue.pop_front().unwrap();
+                                debug!("pressing {prev_event:?}");
+                                slow_press(output, &prev_event.button).await;
+                            }
+                        }
+                        debug!("releasing key {button:?}");
+                        slow_release(output, &button).await;
+                    }
+                    Button::Compose(..) => {
+                        // if this press event was in queue, resolve all ModTaps before in queue as Mods
+                        // otherwise, just resolve this
+                        // TODO
+                    }
+                    _ => {}
+                }
+            }
+        }
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use core::time;
+
+    use super::*;
+
+    use alloc::vec;
+    use alloc::vec::Vec;
+    use embassy_futures::{
+        join::join,
+        select::{select, Either},
+    };
+    use embassy_sync::{blocking_mutex::raw::NoopRawMutex, pubsub::PubSubChannel};
+    use embassy_time::with_timeout;
+    use log::info;
+    use tgnt::{button::Modifier, keys::Key};
+
+    #[test]
+    fn test_modtap_timings() {
+        simple_logger::SimpleLogger::new().init().unwrap();
+
+        let switch_events = PubSubChannel::<NoopRawMutex, switch::Event, 10, 1, 1>::new();
+        let button_events = PubSubChannel::<NoopRawMutex, button::Event, 10, 1, 1>::new();
+        let mut button_sub = button_events.subscriber().unwrap();
+
+        let buttons = [
+            Button::ModTap(Key::A, Modifier::LShift),
+            Button::ModTap(Key::B, Modifier::LCtrl),
+            Button::Key(Key::C),
+        ];
+
+        struct Test {
+            description: &'static str,
+            // button index, pressed, delay
+            input: Vec<(usize, bool, Duration)>,
+            expected: Vec<button::Event>,
+        }
+
+        let modtap_mod = Test {
+            description: "modtap mod",
+            input: vec![
+                (0, true, Duration::from_millis(25)),
+                (1, true, Duration::from_millis(25)),
+                (1, false, Duration::from_millis(25)),
+                (0, false, Duration::from_millis(25)),
+            ],
+            expected: vec![
+                button::Event::PressMod(Modifier::LShift),
+                button::Event::PressKey(Key::B),
+                button::Event::ReleaseKey(Key::B),
+                button::Event::ReleaseMod(Modifier::LShift),
+            ],
+        };
+
+        let modtap_tap = Test {
+            description: "modtap tap",
+            input: vec![
+                (0, true, Duration::from_millis(25)),
+                (1, true, Duration::from_millis(25)),
+                (0, false, Duration::from_millis(25)),
+                (1, false, Duration::from_millis(25)),
+            ],
+            expected: vec![
+                button::Event::PressKey(Key::A),
+                button::Event::ReleaseKey(Key::A),
+                button::Event::PressKey(Key::B),
+                button::Event::ReleaseKey(Key::B),
+            ],
+        };
+
+        let modtap_tap_2x = Test {
+            description: "2x modtap tap",
+            input: vec![
+                (0, true, Duration::from_millis(25)),
+                (2, true, Duration::from_millis(25)),
+                (2, false, Duration::from_millis(25)),
+                (0, false, Duration::from_millis(25)),
+                (0, true, Duration::from_millis(25)),
+                (2, true, Duration::from_millis(25)),
+                (2, false, Duration::from_millis(25)),
+                (0, false, Duration::from_millis(25)),
+            ],
+            expected: vec![
+                button::Event::PressMod(Modifier::LShift),
+                button::Event::PressKey(Key::C),
+                button::Event::ReleaseKey(Key::C),
+                button::Event::ReleaseMod(Modifier::LShift),
+                button::Event::PressMod(Modifier::LShift),
+                button::Event::PressKey(Key::C),
+                button::Event::ReleaseKey(Key::C),
+                button::Event::ReleaseMod(Modifier::LShift),
+            ],
+        };
+
+        for test in [modtap_tap, modtap_mod, modtap_tap_2x] {
+            info!("running timing test test {:?}", test.description);
+            embassy_futures::block_on(async {
+                let r = select(
+                    join(
+                        async {
+                            for &(i, pressed, delay) in &test.input {
+                                let kind = if pressed {
+                                    switch::EventKind::Press {
+                                        button: buttons[i].clone(),
+                                    }
+                                } else {
+                                    switch::EventKind::Release {
+                                        button: buttons[i].clone(),
+                                        after: time::Duration::ZERO, // ignore
+                                    }
+                                };
+
+                                let event = switch::Event {
+                                    source: Half::Left,
+                                    source_button: i,
+                                    kind,
+                                };
+
+                                switch_events.publish_immediate(event);
+
+                                Timer::after(delay).await;
+                            }
+                        },
+                        async {
+                            let mut got = Vec::new();
+                            for _expected in &test.expected {
+                                let event = match with_timeout(
+                                    Duration::from_millis(200),
+                                    button_sub.next_message(),
+                                )
+                                .await
+                                {
+                                    Ok(WaitResult::Message(event)) => event,
+                                    Ok(WaitResult::Lagged(_)) => return Err(("lagged", got)),
+                                    Err(_) => return Err(("timeout", got)),
+                                };
+
+                                got.push(event.clone());
+                            }
+
+                            for (event, expected) in got.iter().zip(test.expected.iter()) {
+                                if event != expected {
+                                    return Err(("unexpected event", got));
+                                }
+                            }
+
+                            Ok(())
+                        },
+                    ),
+                    convert_events(
+                        &mut *switch_events.subscriber().unwrap(),
+                        &mut *button_events.publisher().unwrap(),
+                    ),
+                )
+                .await;
+
+                match r {
+                    Either::First(((), Ok(()))) => {}
+                    Either::First(((), Err((msg, got)))) => panic!(
+                        "timing test {:?} failed due to {msg}.\nexpected={:#?} got={:#?}",
+                        test.description, test.expected, got
+                    ),
+                    Either::Second(never) => never,
+                }
+            });
+        }
+    }
+}
diff --git a/src/led.rs b/lib/src/led.rs
similarity index 100%
rename from src/led.rs
rename to lib/src/led.rs
diff --git a/lib/src/lib.rs b/lib/src/lib.rs
new file mode 100644
index 0000000..0dcb571
--- /dev/null
+++ b/lib/src/lib.rs
@@ -0,0 +1,32 @@
+#![no_std]
+#![feature(type_alias_impl_trait)]
+#![feature(split_array)]
+
+extern crate alloc;
+
+#[cfg(target_arch = "arm")]
+pub mod allocator;
+#[cfg(target_arch = "arm")]
+pub mod board;
+#[cfg(target_arch = "arm")]
+pub mod interrupts;
+#[cfg(target_arch = "arm")]
+pub mod keyboard;
+#[cfg(target_arch = "arm")]
+pub mod lights;
+#[cfg(target_arch = "arm")]
+pub mod panic_handler;
+#[cfg(target_arch = "arm")]
+pub mod uart;
+#[cfg(target_arch = "arm")]
+pub mod usb;
+#[cfg(target_arch = "arm")]
+pub mod ws2812;
+
+pub mod event;
+pub mod logger;
+pub mod neopixel;
+pub mod rgb;
+pub mod rtt;
+pub mod util;
+pub mod keypress_handler;
diff --git a/src/lights.rs b/lib/src/lights.rs
similarity index 96%
rename from src/lights.rs
rename to lib/src/lights.rs
index dd5d9b3..d20544a 100644
--- a/src/lights.rs
+++ b/lib/src/lights.rs
@@ -2,7 +2,7 @@ use crate::ws2812::Ws2812;
 use embassy_rp::pio;
 use embassy_sync::mutex::Mutex;
 
-use crate::{util::CS, ws2812::Rgb};
+use crate::{rgb::Rgb, util::CS};
 
 pub struct Lights<P: pio::Instance + 'static, const N: usize> {
     state: Mutex<CS, State<P, N>>,
diff --git a/src/logger.rs b/lib/src/logger.rs
similarity index 91%
rename from src/logger.rs
rename to lib/src/logger.rs
index 260d6a5..c626239 100644
--- a/src/logger.rs
+++ b/lib/src/logger.rs
@@ -24,8 +24,10 @@ impl Logger {
 
         static LOGGER: StaticCell<Logger> = StaticCell::new();
         let logger = LOGGER.init(self);
-        unsafe { log::set_logger_racy(logger).unwrap() };
-        log::set_max_level(log::LevelFilter::Debug);
+        unsafe {
+            log::set_logger_racy(logger).unwrap();
+            log::set_max_level_racy(log::LevelFilter::Debug);
+        }
     }
 }
 
diff --git a/src/neopixel.pio b/lib/src/neopixel.pio
similarity index 100%
rename from src/neopixel.pio
rename to lib/src/neopixel.pio
diff --git a/src/neopixel.rs b/lib/src/neopixel.rs
similarity index 100%
rename from src/neopixel.rs
rename to lib/src/neopixel.rs
diff --git a/src/neopixel2.pio b/lib/src/neopixel2.pio
similarity index 100%
rename from src/neopixel2.pio
rename to lib/src/neopixel2.pio
diff --git a/src/panic_handler.rs b/lib/src/panic_handler.rs
similarity index 100%
rename from src/panic_handler.rs
rename to lib/src/panic_handler.rs
diff --git a/lib/src/rgb.rs b/lib/src/rgb.rs
new file mode 100644
index 0000000..a545e16
--- /dev/null
+++ b/lib/src/rgb.rs
@@ -0,0 +1,58 @@
+use bytemuck::{cast_slice, Pod, Zeroable};
+use core::{
+    fmt::{self, Debug},
+    ops::Div,
+};
+
+/// An Rgb value that can be safely transmuted to u32 for use with Ws2812.
+#[repr(transparent)]
+#[derive(Clone, Copy, PartialEq, Eq, Pod, Zeroable)]
+pub struct Rgb(u32);
+
+impl Rgb {
+    #[inline(always)]
+    pub const fn new(r: u8, g: u8, b: u8) -> Self {
+        Self(u32::from_be_bytes([g, r, b, 0]))
+    }
+
+    /// Get the red, green, and blue components of this Rgb.
+    #[inline(always)]
+    pub const fn components(&self) -> [u8; 3] {
+        let [g, r, b, _] = self.0.to_be_bytes();
+        [r, g, b]
+    }
+
+    #[inline(always)]
+    pub fn slice_as_u32s(rgbs: &[Rgb]) -> &[u32] {
+        cast_slice(rgbs)
+    }
+}
+
+impl Debug for Rgb {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        let [r, g, b] = self.components();
+        f.debug_tuple("Rgb").field(&r).field(&g).field(&b).finish()
+    }
+}
+
+impl Div<u8> for Rgb {
+    type Output = Rgb;
+
+    fn div(self, d: u8) -> Self::Output {
+        let [r, g, b] = self.components();
+        Rgb::new(r / d, g / d, b / d)
+    }
+}
+
+#[cfg(all(target_arch = "x86_64", test))]
+mod tests {
+    use super::*;
+    use bytemuck::cast;
+
+    #[test]
+    fn test_rgb_as_u32() {
+        let rgb = Rgb::new(0x11, 0x22, 0xCC);
+        let rgb_u32: u32 = cast(rgb);
+        assert_eq!(rgb_u32, 0x2211CC00);
+    }
+}
diff --git a/src/rtt.rs b/lib/src/rtt.rs
similarity index 100%
rename from src/rtt.rs
rename to lib/src/rtt.rs
diff --git a/src/uart.rs b/lib/src/uart.rs
similarity index 97%
rename from src/uart.rs
rename to lib/src/uart.rs
index f4895a8..14aa159 100644
--- a/src/uart.rs
+++ b/lib/src/uart.rs
@@ -11,12 +11,13 @@ use heapless::Vec;
 use serde::{Deserialize, Serialize};
 use static_cell::StaticCell;
 
-use crate::keyboard::{self, Half, KbEvents};
-use crate::Irqs;
+use crate::event::{switch, Half};
+use crate::interrupts::Irqs;
+use crate::keyboard::KbEvents;
 
 #[derive(Clone, Debug, Serialize, Deserialize)]
 enum Message {
-    KeyboardEvent(keyboard::Event),
+    KeyboardEvent(switch::Event),
 }
 
 pub async fn start(tx: PIN_0, rx: PIN_1, uart: UART0, board: Half, events: KbEvents) {
diff --git a/src/usb.rs b/lib/src/usb.rs
similarity index 97%
rename from src/usb.rs
rename to lib/src/usb.rs
index 3297d2c..3e6b51c 100644
--- a/src/usb.rs
+++ b/lib/src/usb.rs
@@ -3,7 +3,7 @@ use embassy_rp::{peripherals::USB, usb::Driver};
 use embassy_usb::{Builder, Config, UsbDevice};
 use static_cell::StaticCell;
 
-use crate::{keyboard::KbEvents, Irqs};
+use crate::{interrupts::Irqs, keyboard::KbEvents};
 
 pub mod keyboard;
 pub mod logger;
diff --git a/src/usb/keyboard.rs b/lib/src/usb/keyboard.rs
similarity index 55%
rename from src/usb/keyboard.rs
rename to lib/src/usb/keyboard.rs
index 2830984..f17d28d 100644
--- a/src/usb/keyboard.rs
+++ b/lib/src/usb/keyboard.rs
@@ -1,8 +1,13 @@
 pub mod report;
 
 use embassy_executor::Spawner;
+use embassy_futures::select::select;
 use embassy_rp::{peripherals::USB, usb::Driver};
-use embassy_sync::mutex::Mutex;
+use embassy_sync::{
+    blocking_mutex::raw::NoopRawMutex,
+    mutex::Mutex,
+    pubsub::{PubSubChannel, WaitResult},
+};
 use embassy_time::{Duration, Timer};
 use embassy_usb::{
     class::hid::{self, HidReaderWriter, ReadError, ReportId, RequestHandler},
@@ -10,13 +15,15 @@ use embassy_usb::{
     Builder,
 };
 use embassy_usb_driver::EndpointError;
+use log::error;
 use static_cell::StaticCell;
-use usbd_hid::descriptor::{MouseReport, SerializedDescriptor};
+use usbd_hid::descriptor::SerializedDescriptor;
 
 use crate::{
-    keyboard::{Event, EventKind, KbEvents},
+    event::button,
+    keyboard::KbEvents,
     usb::keyboard::report::{KeyboardReport, EMPTY_KEYBOARD_REPORT},
-    util::CS,
+    util::CS, keypress_handler::keypress_handler,
 };
 
 use super::MAX_PACKET_SIZE;
@@ -25,7 +32,18 @@ struct Handler;
 
 static CONTEXT: StaticCell<Context> = StaticCell::new();
 
-pub static KB_REPORT: Mutex<CS, KeyboardReport> = Mutex::new(EMPTY_KEYBOARD_REPORT);
+static KB_REPORT: Mutex<CS, Reports> = Mutex::new(Reports {
+    actual: EMPTY_KEYBOARD_REPORT,
+    unsent: EMPTY_KEYBOARD_REPORT,
+});
+
+struct Reports {
+    /// The report to be sent to the host machine.
+    actual: KeyboardReport,
+
+    /// Key presses which hasn't been sent yet.
+    unsent: KeyboardReport,
+}
 
 struct Context {
     handler: Handler,
@@ -86,20 +104,53 @@ type HidStream = HidReaderWriter<'static, Driver<'static, USB>, 256, 256>;
 
 #[embassy_executor::task]
 async fn listen_to_events(mut events: KbEvents) {
-    loop {
-        let event = events.recv().await;
-        report_event(event).await;
-    }
-}
+    let button_events = PubSubChannel::<NoopRawMutex, button::Event, 10, 1, 1>::new();
+    let mut button_pub = button_events.publisher().unwrap();
+    let mut button_sub = button_events.subscriber().unwrap();
 
-pub async fn report_event(event: Event) {
-    match event.kind {
-        EventKind::PressKey(key) => KB_REPORT.lock().await.press_key(key),
-        EventKind::ReleaseKey(key) => KB_REPORT.lock().await.release_key(key),
-        EventKind::PressModifier(modifier) => KB_REPORT.lock().await.press_modifier(modifier),
-        EventKind::ReleaseModifier(modifier) => KB_REPORT.lock().await.release_modifier(modifier),
-        EventKind::SetLayer(_) => {}
-    }
+    select(
+        async {
+            loop {
+                let WaitResult::Message(event) = button_sub.next_message().await else {
+                    error!("lagged");
+                    continue;
+                };
+
+                loop {
+                    let mut r = KB_REPORT.lock().await;
+                    match event {
+                        button::Event::PressKey(k) => {
+                            r.actual.press_key(k);
+                            r.unsent.press_key(k);
+                        }
+                        button::Event::PressMod(m) => {
+                            r.actual.press_modifier(m);
+                            r.unsent.press_modifier(m);
+                        }
+
+                        // we got a key release, but if the key press hasn't been sent yet, we
+                        // wait for a bit until it has.
+                        button::Event::ReleaseKey(k) if r.unsent.key_pressed(k) => {
+                            drop(r);
+                            Timer::after(Duration::from_millis(1)).await;
+                            continue;
+                        }
+                        button::Event::ReleaseMod(m) if r.unsent.modifier_pressed(m) => {
+                            drop(r);
+                            Timer::after(Duration::from_millis(1)).await;
+                            continue;
+                        }
+
+                        button::Event::ReleaseKey(k) => r.actual.release_key(k),
+                        button::Event::ReleaseMod(m) => r.actual.release_modifier(m),
+                    }
+                    break;
+                }
+            }
+        },
+        keypress_handler(&mut *events.subscriber, &mut *button_pub),
+    )
+    .await;
 }
 
 #[embassy_executor::task]
@@ -107,9 +158,6 @@ async fn task(stream: HidStream, handler: &'static Handler) {
     if let Err(e) = keyboard_report(stream, handler).await {
         log::error!("keyboard error: {e:?}");
     }
-    //if let Err(e) = mouse_wiggler(stream).await {
-    //    log::error!("mouse wiggler: {e:?}");
-    //}
 }
 
 async fn keyboard_report(mut stream: HidStream, _handler: &'static Handler) -> Result<(), Error> {
@@ -117,7 +165,12 @@ async fn keyboard_report(mut stream: HidStream, _handler: &'static Handler) -> R
     loop {
         Timer::after(Duration::from_millis(2)).await;
 
-        let report = KB_REPORT.lock().await.clone();
+        let report = {
+            let mut reports = KB_REPORT.lock().await;
+            reports.unsent = EMPTY_KEYBOARD_REPORT;
+            reports.actual.clone()
+        };
+
         if report.keycodes != EMPTY_KEYBOARD_REPORT.keycodes {
             log::trace!("keys: {:x?}", report.keycodes);
         }
@@ -130,48 +183,6 @@ async fn keyboard_report(mut stream: HidStream, _handler: &'static Handler) -> R
     }
 }
 
-#[allow(dead_code)]
-async fn mouse_wiggler(mut stream: HidStream) -> Result<(), Error> {
-    stream.ready().await;
-
-    let (_r, mut w) = stream.split();
-
-    let write_fut = async move {
-        let mut x = 1;
-        loop {
-            for _ in 0..100 {
-                Timer::after(Duration::from_millis(10)).await;
-                log::info!("sending mouse report");
-                //w.ready().await;
-                w.write_serialize(&MouseReport {
-                    x,
-                    y: 0,
-                    buttons: 0,
-                    wheel: 0,
-                    pan: 0,
-                })
-                .await?;
-            }
-            x = -x;
-        }
-    };
-
-    //let read_fut = async move {
-    //    let mut buf = [0u8; MAX_PACKET_SIZE as usize];
-    //    loop {
-    //        Timer::after(Duration::from_millis(30)).await;
-    //        let n = r.read(&mut buf).await?;
-    //        log::info!("got packet: {:?}", &buf[..n]);
-    //    }
-    //};
-
-    //let r: Result<((), ()), Error> = try_join(write_fut, read_fut).await;
-    let r: Result<(), Error> = write_fut.await;
-    r?;
-
-    Ok(())
-}
-
 #[derive(Debug)]
 enum Error {
     Read(ReadError),
diff --git a/src/usb/keyboard/report.rs b/lib/src/usb/keyboard/report.rs
similarity index 78%
rename from src/usb/keyboard/report.rs
rename to lib/src/usb/keyboard/report.rs
index ce25a75..f09a3a8 100644
--- a/src/usb/keyboard/report.rs
+++ b/lib/src/usb/keyboard/report.rs
@@ -5,7 +5,7 @@
 /// keyboard LEDs.
 ///
 /// Unlike usbd_hids KeyboardReport, this one supports N-key rollover.
-#[derive(Clone, PartialEq, Eq)]
+#[derive(Clone, Copy, PartialEq, Eq, Zeroable, Pod)]
 #[cfg(feature = "n-key-rollover")]
 #[repr(C, packed)]
 pub struct KeyboardReport {
@@ -15,7 +15,8 @@ pub struct KeyboardReport {
     pub keycodes: [u8; 27],
 }
 
-use core::mem::{size_of, transmute};
+use bytemuck::{cast_ref, Pod, Zeroable};
+use core::mem::size_of;
 use tgnt::{button::Modifier, keys::Key};
 
 #[cfg(not(feature = "n-key-rollover"))]
@@ -35,14 +36,21 @@ pub const EMPTY_KEYBOARD_REPORT: KeyboardReport = KeyboardReport {
     keycodes: [0; 6],
 };
 
+/// Get the byte index, and the mask for that byte, in the keycode bitmap.
+fn key_to_byte_mask(key: Key) -> (usize, u8) {
+    let keycode = u8::from(key);
+    let byte = keycode >> 3;
+    let bit = keycode & 0b111;
+    let mask = 1 << bit;
+
+    (usize::from(byte), mask)
+}
+
 #[cfg(feature = "n-key-rollover")]
 impl KeyboardReport {
     #[inline(always)]
     pub fn set_key(&mut self, key: Key, pressed: bool) {
-        let keycode = u8::from(key);
-        let byte = keycode >> 3;
-        let bit = keycode & 0b111;
-        let mask = 1 << bit;
+        let (byte, mask) = key_to_byte_mask(key);
 
         if let Some(k) = self.keycodes.get_mut(byte as usize) {
             if pressed {
@@ -51,7 +59,7 @@ impl KeyboardReport {
                 *k &= !mask;
             }
         } else {
-            log::warn!("Tried to set out-of-range keycode: 0x{keycode:x}");
+            log::warn!("Tried to set out-of-range keycode: 0x{:x}", u8::from(key));
         }
     }
 
@@ -65,6 +73,17 @@ impl KeyboardReport {
         self.set_key(key, false)
     }
 
+    #[inline(always)]
+    pub fn key_pressed(&mut self, key: Key) -> bool {
+        let (byte, mask) = key_to_byte_mask(key);
+        if let Some(k) = self.keycodes.get_mut(byte as usize) {
+            (*k & mask) != 0
+        } else {
+            log::warn!("Tried to get out-of-range keycode: 0x{:x}", u8::from(key));
+            false
+        }
+    }
+
     #[inline(always)]
     pub fn set_modifier(&mut self, modifier: Modifier, pressed: bool) {
         if pressed {
@@ -84,10 +103,14 @@ impl KeyboardReport {
         self.set_modifier(modifier, false)
     }
 
+    #[inline(always)]
+    pub fn modifier_pressed(&mut self, modifier: Modifier) -> bool {
+        (self.modifier & u8::from(modifier)) != 0
+    }
+
     #[inline(always)]
     pub fn as_bytes(&self) -> &[u8; size_of::<KeyboardReport>()] {
-        // SAFETY: KeyboardReport is repr(C, packed) and contains only u8s.
-        unsafe { transmute(self) }
+        cast_ref(self)
     }
 }
 
diff --git a/src/usb/logger.rs b/lib/src/usb/logger.rs
similarity index 67%
rename from src/usb/logger.rs
rename to lib/src/usb/logger.rs
index 0da393f..e5e4df3 100644
--- a/src/usb/logger.rs
+++ b/lib/src/usb/logger.rs
@@ -2,39 +2,17 @@ use crate::util::CS;
 
 use super::MAX_PACKET_SIZE;
 use core::fmt::Write as WriteFmt;
-use embassy_executor::Spawner;
 use embassy_rp::{peripherals::USB, usb::Driver};
 use embassy_sync::pipe::Pipe;
 use embassy_time::Instant;
-use embassy_usb::{
-    class::cdc_acm::{self, CdcAcmClass},
-    Builder,
-};
+use embassy_usb::class::cdc_acm::CdcAcmClass;
 use log::{Metadata, Record};
-use static_cell::StaticCell;
 
 pub const BUFFER_SIZE: usize = 16 * 1024;
 static BUFFER: Pipe<CS, BUFFER_SIZE> = Pipe::new();
 
 struct UsbLogger;
 
-pub async fn setup(usb_builder: &mut Builder<'static, Driver<'static, USB>>) {
-    unsafe {
-        static LOGGER: UsbLogger = UsbLogger;
-        log::set_logger_racy(&LOGGER).unwrap();
-    }
-    log::set_max_level(log::LevelFilter::Debug);
-
-    let spawner = Spawner::for_current_executor().await;
-
-    static STATE: StaticCell<cdc_acm::State<'static>> = StaticCell::new();
-    let state = STATE.init(cdc_acm::State::new());
-
-    let class = CdcAcmClass::new(usb_builder, state, MAX_PACKET_SIZE as u16);
-
-    spawner.must_spawn(log_task(class));
-}
-
 #[embassy_executor::task]
 async fn log_task(mut class: CdcAcmClass<'static, Driver<'static, USB>>) {
     let mut buf = [0u8; MAX_PACKET_SIZE as usize];
diff --git a/src/util.rs b/lib/src/util.rs
similarity index 96%
rename from src/util.rs
rename to lib/src/util.rs
index efe5987..641c805 100644
--- a/src/util.rs
+++ b/lib/src/util.rs
@@ -1,7 +1,7 @@
 use embassy_sync::blocking_mutex::raw::CriticalSectionRawMutex;
 use embassy_time::{Duration, Timer};
 
-use crate::ws2812::Rgb;
+use crate::rgb::Rgb;
 
 pub type CS = CriticalSectionRawMutex;
 
diff --git a/src/ws2812.rs b/lib/src/ws2812.rs
similarity index 73%
rename from src/ws2812.rs
rename to lib/src/ws2812.rs
index d1b819f..02672ae 100644
--- a/src/ws2812.rs
+++ b/lib/src/ws2812.rs
@@ -1,23 +1,16 @@
-use core::fmt::{self, Debug};
-use core::mem::transmute;
-use core::ops::Div;
-
 use embassy_rp::dma::{self, AnyChannel};
 use embassy_rp::pio::{self, FifoJoin, Instance, Pio, PioPin, ShiftConfig, ShiftDirection};
 use embassy_rp::relocate::RelocatedProgram;
 use embassy_rp::{Peripheral, PeripheralRef};
 use fixed::FixedU32;
 
+use crate::rgb::Rgb;
+
 pub struct Ws2812<P: pio::Instance + 'static> {
     sm: pio::StateMachine<'static, P, 0>,
     dma: PeripheralRef<'static, AnyChannel>,
 }
 
-/// An Rgb value that can be safely transmuted to u32 for use with Ws2812.
-#[repr(transparent)]
-#[derive(Clone, Copy, PartialEq, Eq)]
-pub struct Rgb(u32);
-
 impl<P: Instance> Ws2812<P> {
     pub fn new(
         pio: impl Peripheral<P = P> + 'static,
@@ -96,39 +89,3 @@ impl<P: Instance> Ws2812<P> {
         self.sm.tx().dma_push(self.dma.reborrow(), colors).await;
     }
 }
-
-impl Rgb {
-    #[inline(always)]
-    pub const fn new(r: u8, g: u8, b: u8) -> Self {
-        Self(u32::from_be_bytes([g, r, b, 0]))
-    }
-
-    /// Get the red, green, and blue components of this Rgb.
-    #[inline(always)]
-    pub const fn components(&self) -> [u8; 3] {
-        let [g, r, b, _] = self.0.to_be_bytes();
-        [r, g, b]
-    }
-
-    #[inline(always)]
-    pub fn slice_as_u32s(rgbs: &[Rgb]) -> &[u32] {
-        // SAFETY: Rgb contains only a u32, and is #[repr(transparent)]
-        unsafe { transmute(rgbs) }
-    }
-}
-
-impl Debug for Rgb {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        let [r, g, b] = self.components();
-        f.debug_tuple("Rgb").field(&r).field(&g).field(&b).finish()
-    }
-}
-
-impl Div<u8> for Rgb {
-    type Output = Rgb;
-
-    fn div(self, d: u8) -> Self::Output {
-        let [r, g, b] = self.components();
-        Rgb::new(r / d, g / d, b / d)
-    }
-}
diff --git a/Cargo.lock b/right/Cargo.lock
similarity index 88%
rename from Cargo.lock
rename to right/Cargo.lock
index bd4279d..e4f886f 100644
--- a/Cargo.lock
+++ b/right/Cargo.lock
@@ -44,6 +44,17 @@ dependencies = [
  "critical-section",
 ]
 
+[[package]]
+name = "atty"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
+dependencies = [
+ "hermit-abi 0.1.19",
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "autocfg"
 version = "1.1.0"
@@ -115,7 +126,7 @@ checksum = "fdde5c9cd29ebd706ce1b35600920a33550e402fc998a2e53ad3b42c3c47a192"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.16",
+ "syn 2.0.18",
 ]
 
 [[package]]
@@ -152,6 +163,17 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "colored"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b3616f750b84d8f0de8a58bda93e08e2a81ad3f523089b05f1dffecab48c6cbd"
+dependencies = [
+ "atty",
+ "lazy_static",
+ "winapi",
+]
+
 [[package]]
 name = "cortex-m"
 version = "0.7.7"
@@ -282,7 +304,7 @@ checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
 [[package]]
 name = "embassy-cortex-m"
 version = "0.1.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
  "atomic-polyfill 1.0.2",
  "cfg-if",
@@ -297,8 +319,9 @@ dependencies = [
 [[package]]
 name = "embassy-embedded-hal"
 version = "0.1.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
+ "embassy-futures",
  "embassy-sync",
  "embedded-hal 0.2.7",
  "embedded-hal 1.0.0-alpha.10",
@@ -311,7 +334,7 @@ dependencies = [
 [[package]]
 name = "embassy-executor"
 version = "0.2.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
  "atomic-polyfill 1.0.2",
  "cortex-m",
@@ -326,7 +349,7 @@ dependencies = [
 [[package]]
 name = "embassy-futures"
 version = "0.1.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
  "log",
 ]
@@ -334,7 +357,7 @@ dependencies = [
 [[package]]
 name = "embassy-hal-common"
 version = "0.1.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
  "num-traits",
 ]
@@ -342,7 +365,7 @@ dependencies = [
 [[package]]
 name = "embassy-macros"
 version = "0.2.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
  "darling",
  "proc-macro2",
@@ -353,12 +376,12 @@ dependencies = [
 [[package]]
 name = "embassy-net-driver"
 version = "0.1.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 
 [[package]]
 name = "embassy-net-driver-channel"
 version = "0.1.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
  "embassy-futures",
  "embassy-net-driver",
@@ -368,7 +391,7 @@ dependencies = [
 [[package]]
 name = "embassy-rp"
 version = "0.1.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
  "atomic-polyfill 1.0.2",
  "cfg-if",
@@ -404,7 +427,7 @@ dependencies = [
 [[package]]
 name = "embassy-sync"
 version = "0.2.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
  "cfg-if",
  "critical-section",
@@ -417,7 +440,7 @@ dependencies = [
 [[package]]
 name = "embassy-time"
 version = "0.1.1"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
  "atomic-polyfill 1.0.2",
  "cfg-if",
@@ -431,7 +454,7 @@ dependencies = [
 [[package]]
 name = "embassy-usb"
 version = "0.1.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
  "embassy-futures",
  "embassy-net-driver-channel",
@@ -445,12 +468,12 @@ dependencies = [
 [[package]]
 name = "embassy-usb-driver"
 version = "0.1.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 
 [[package]]
 name = "embassy-usb-logger"
 version = "0.1.0"
-source = "git+https://github.com/embassy-rs/embassy.git#d55b9bc6e2de528e1351b992bb30f54ec6f76b6d"
+source = "git+https://github.com/embassy-rs/embassy.git#d414f4e4f7f243b4e52e6550ca616c180d731774"
 dependencies = [
  "embassy-futures",
  "embassy-sync",
@@ -631,7 +654,7 @@ checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.16",
+ "syn 2.0.18",
 ]
 
 [[package]]
@@ -709,6 +732,15 @@ dependencies = [
  "stable_deref_trait",
 ]
 
+[[package]]
+name = "hermit-abi"
+version = "0.1.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "hermit-abi"
 version = "0.3.1"
@@ -733,11 +765,11 @@ dependencies = [
 
 [[package]]
 name = "io-lifetimes"
-version = "1.0.10"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9c66c74d2ae7e79a5a8f7ac924adbe38ee42a859c6539ad869eb51f0b52dc220"
+checksum = "eae7b9aee968036d54dce06cebaefd919e4472e753296daccd6d344e3e2df0c2"
 dependencies = [
- "hermit-abi",
+ "hermit-abi 0.3.1",
  "libc",
  "windows-sys 0.48.0",
 ]
@@ -748,7 +780,7 @@ version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "adcf93614601c8129ddf72e2d5633df827ba6551541c6d8c59520a371475be1f"
 dependencies = [
- "hermit-abi",
+ "hermit-abi 0.3.1",
  "io-lifetimes",
  "rustix",
  "windows-sys 0.48.0",
@@ -763,6 +795,12 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itoa"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "453ad9f582a441959e5f0d088b02ce04cfe8d51a8eaf077f12ac6d3e94164ca6"
+
 [[package]]
 name = "lalrpop"
 version = "0.19.12"
@@ -794,6 +832,12 @@ dependencies = [
  "regex",
 ]
 
+[[package]]
+name = "lazy_static"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+
 [[package]]
 name = "libc"
 version = "0.2.144"
@@ -824,12 +868,9 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.17"
+version = "0.4.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
-dependencies = [
- "cfg-if",
-]
+checksum = "518ef76f2f87365916b142844c16d8fefd85039bc5699050210a7778ee1cd1de"
 
 [[package]]
 name = "memchr"
@@ -888,10 +929,19 @@ dependencies = [
 ]
 
 [[package]]
-name = "once_cell"
-version = "1.17.1"
+name = "num_threads"
+version = "0.1.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7e5500299e16ebb147ae15a00a942af264cf3688f47923b8fc2cd5858f23ad3"
+checksum = "2819ce041d2ee131036f4fc9d6ae7ae125a3a40e97ba64d04fe799ad9dabbb44"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "once_cell"
+version = "1.17.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9670a07f94779e00908f3e686eab508878ebb390ba6e604d3a284c00e8d0487b"
 
 [[package]]
 name = "parking_lot"
@@ -1036,18 +1086,18 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.58"
+version = "1.0.59"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa1fb82fc0c281dd9671101b66b771ebbe1eaf967b96ac8740dcba4b70005ca8"
+checksum = "6aeca18b86b413c660b781aa319e4e2648a3e6f9eadc9b47e9038e6fe9f3451b"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.27"
+version = "1.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f4f29d145265ec1c483c7c654450edde0bfe043d3938d6972630663356d9500"
+checksum = "1b9ab9c7eadfd8df19006f1cf1a4aed13540ed5cbc047010ece5826e10825488"
 dependencies = [
  "proc-macro2",
 ]
@@ -1080,13 +1130,13 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.8.1"
+version = "1.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af83e617f331cc6ae2da5443c602dfa5af81e517212d9d611a5b3ba1777b5370"
+checksum = "81ca098a9821bd52d6b24fd8b10bd081f47d39c22778cafaa75a2857a62c6390"
 dependencies = [
  "aho-corasick",
  "memchr",
- "regex-syntax 0.7.1",
+ "regex-syntax 0.7.2",
 ]
 
 [[package]]
@@ -1097,9 +1147,9 @@ checksum = "f162c6dd7b008981e4d40210aca20b4bd0f9b60ca9271061b07f78537722f2e1"
 
 [[package]]
 name = "regex-syntax"
-version = "0.7.1"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a5996294f19bd3aae0453a862ad728f60e6600695733dd5df01da90c54363a3c"
+checksum = "436b050e76ed2903236f032a59761c1eb99e1b0aead2c257922771dab1fc8c78"
 
 [[package]]
 name = "rgb"
@@ -1232,7 +1282,20 @@ checksum = "8c805777e3930c8883389c602315a24224bcc738b63905ef87cd1420353ea93e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.16",
+ "syn 2.0.18",
+]
+
+[[package]]
+name = "simple_logger"
+version = "4.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e78beb34673091ccf96a8816fce8bfd30d1292c7621ca2bcb5f2ba0fae4f558d"
+dependencies = [
+ "atty",
+ "colored",
+ "log",
+ "time",
+ "windows-sys 0.42.0",
 ]
 
 [[package]]
@@ -1292,9 +1355,9 @@ checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 
 [[package]]
 name = "static_cell"
-version = "1.0.0"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e4c37c250d21f53fa7165e76e5401d7e6539c211a8d2cf449e3962956a5cc2ce"
+checksum = "ed6a851e9c00ce152b2bad24e8545a6db0b8646988267a6ea966d95c6932e8a2"
 dependencies = [
  "atomic-polyfill 1.0.2",
 ]
@@ -1331,9 +1394,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.16"
+version = "2.0.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a6f671d4b5ffdb8eadec19c0ae67fe2639df8684bd7bc4b83d986b8db549cf01"
+checksum = "32d41677bcbe24c20c52e7c70b0d8db04134c5d1066bf98662e2871ad200ea3e"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1341,7 +1404,7 @@ dependencies = [
 ]
 
 [[package]]
-name = "tangentbord1"
+name = "tangentbord1-lib"
 version = "0.1.0"
 dependencies = [
  "atomic-polyfill 1.0.2",
@@ -1372,6 +1435,7 @@ dependencies = [
  "ron",
  "rtt-target",
  "serde",
+ "simple_logger",
  "smart-leds",
  "static_cell",
  "tgnt",
@@ -1379,6 +1443,23 @@ dependencies = [
  "usbd-hid",
 ]
 
+[[package]]
+name = "tangentbord1-right"
+version = "0.1.0"
+dependencies = [
+ "cortex-m-rt",
+ "embassy-executor",
+ "embassy-futures",
+ "embassy-rp",
+ "embassy-sync",
+ "embassy-time",
+ "log",
+ "postcard",
+ "ron",
+ "tangentbord1-lib",
+ "tgnt",
+]
+
 [[package]]
 name = "term"
 version = "0.7.0"
@@ -1402,7 +1483,6 @@ dependencies = [
 [[package]]
 name = "tgnt"
 version = "0.1.0"
-source = "git+https://git.nubo.sh/hulthe/tgnt.git#643f75cf0a33208ec18c38ea7d9ccf06f344ff35"
 dependencies = [
  "serde",
 ]
@@ -1424,7 +1504,36 @@ checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.16",
+ "syn 2.0.18",
+]
+
+[[package]]
+name = "time"
+version = "0.3.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8f3403384eaacbca9923fa06940178ac13e4edb725486d70e8e15881d0c836cc"
+dependencies = [
+ "itoa",
+ "libc",
+ "num_threads",
+ "serde",
+ "time-core",
+ "time-macros",
+]
+
+[[package]]
+name = "time-core"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7300fbefb4dadc1af235a9cef3737cea692a9d97e1b9cbcd4ebdae6f8868e6fb"
+
+[[package]]
+name = "time-macros"
+version = "0.2.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "372950940a5f07bf38dbe211d7283c9e6d7327df53794992d293e534c733d09b"
+dependencies = [
+ "time-core",
 ]
 
 [[package]]
@@ -1450,9 +1559,9 @@ checksum = "e87a2ed6b42ec5e28cc3b94c09982969e9227600b2e3dcbc1db927a84c06bd69"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.8"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
+checksum = "b15811caf2415fb889178633e7724bad2509101cde276048e013b9def5e51fa0"
 
 [[package]]
 name = "unicode-width"
@@ -1571,6 +1680,21 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows-sys"
+version = "0.42.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
+dependencies = [
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.45.0"
diff --git a/right/Cargo.toml b/right/Cargo.toml
new file mode 100644
index 0000000..a527416
--- /dev/null
+++ b/right/Cargo.toml
@@ -0,0 +1,29 @@
+[package]
+name = "tangentbord1-right"
+version = "0.1.0"
+authors = ["Joakim Hulthe <joakim@hulthe.net>"]
+description = "Keyboard firmware"
+edition = "2021"
+
+[dependencies.tangentbord1]
+path = "../lib"
+package = "tangentbord1-lib"
+
+[dependencies]
+tgnt = { git = "https://git.nubo.sh/hulthe/tgnt.git", default-features = false }
+cortex-m-rt = "0.7"
+embassy-rp = { git = "https://github.com/embassy-rs/embassy.git", features = ["log", "nightly", "unstable-traits", "unstable-pac", "time-driver", "critical-section-impl"] }
+embassy-executor = { git = "https://github.com/embassy-rs/embassy.git", features = ["arch-cortex-m", "log", "executor-thread", "nightly", "integrated-timers" ] }
+embassy-sync = { git = "https://github.com/embassy-rs/embassy.git", features = ["log", "nightly"] }
+embassy-time = { git = "https://github.com/embassy-rs/embassy.git", features = ["log"] }
+embassy-futures = { git = "https://github.com/embassy-rs/embassy.git", features = ["log"] }
+log = "0.4.17"
+postcard = { version = "1.0.4", features = ["alloc"] }
+
+[patch."https://git.nubo.sh/hulthe/tgnt.git"]
+tgnt = { path = "../../tgnt" }
+
+[build-dependencies]
+tgnt = { git = "https://git.nubo.sh/hulthe/tgnt.git", default-features = false }
+ron = "0.8.0"
+postcard = { version = "1", features = ["use-std"] }
diff --git a/right/build.rs b/right/build.rs
new file mode 100644
index 0000000..43337e4
--- /dev/null
+++ b/right/build.rs
@@ -0,0 +1,59 @@
+//! 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::fs::File;
+use std::io::Write;
+use std::path::PathBuf;
+use std::{env, fs};
+
+use tgnt::layer::Layer;
+
+fn main() {
+    memory();
+    serialize_layout("./layers.ron", "./src/layers.pc");
+}
+
+fn memory() {
+    // 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");
+
+    // --nmagic turns off page alignment of sections (which saves flash space)
+    println!("cargo:rustc-link-arg-bins=--nmagic");
+
+    println!("cargo:rustc-link-arg-bins=-Tlink.x");
+    println!("cargo:rustc-link-arg-bins=-Tlink-rp.x");
+    //println!("cargo:rustc-link-arg-bins=-Tdefmt.x");
+}
+
+fn serialize_layout(ron_path: &str, postcard_path: &str) {
+    println!("cargo:rerun-if-changed={ron_path}");
+
+    let layers = fs::read_to_string(ron_path).expect("Failed to read .ron");
+    let layers: Vec<Layer> = ron::from_str(&layers).expect("Failed to deserialize .ron");
+
+    let serialized = postcard::to_stdvec(&layers).expect("Failed to serialize layers");
+
+    File::create(postcard_path)
+        .expect("Failed to create .pc")
+        .write_all(&serialized)
+        .expect("Failed to write .pc");
+}
diff --git a/layers-right.ron b/right/layers.ron
similarity index 94%
rename from layers-right.ron
rename to right/layers.ron
index 01ab85e..3407648 100644
--- a/layers-right.ron
+++ b/right/layers.ron
@@ -23,7 +23,7 @@
 			Key(Z),
 
 			// Thumbpad
-			PrevLayer,
+			HoldLayer(1),
 			Key(Return),
 			Key(Delete),
 		],
@@ -53,7 +53,7 @@
 			None,
 
 			// Thumbpad
-			PrevLayer,
+			HoldLayer(1),
 			Key(Return),
 			Key(Delete),
 		],
@@ -82,7 +82,7 @@
 			None,
 
 			// Thumbpad
-			PrevLayer,
+			HoldLayer(1),
 			Key(Return),
 			Key(Delete),
 		],
diff --git a/right/src/layers.pc b/right/src/layers.pc
new file mode 100644
index 0000000000000000000000000000000000000000..9238c3868f1826fb6db72e0a95c60f79cec6e76c
GIT binary patch
literal 105
zcmXZSxeb6Y5CB2%*}e;a03(q2-%5z+zaqr5>8wvg6rm);iv_8o6e`JpoQ9fK;owS~
dEUawoCS#B(%B;?ej-J8($=+OW(LMO|$qn0^1cv|s

literal 0
HcmV?d00001

diff --git a/src/bin/right.rs b/right/src/main.rs
similarity index 90%
rename from src/bin/right.rs
rename to right/src/main.rs
index 2a46015..02489a7 100644
--- a/src/bin/right.rs
+++ b/right/src/main.rs
@@ -12,12 +12,16 @@ use embassy_executor::Spawner;
 use embassy_rp::gpio::{Level, Output, Pin};
 use embassy_time::{Duration, Timer};
 use log::error;
-use tangentbord1::board::Board;
-use tangentbord1::keyboard::{Half, KeyboardConfig};
-use tangentbord1::logger::Logger;
-use tangentbord1::util::{stall, wheel};
-use tangentbord1::ws2812::{Rgb, Ws2812};
-use tangentbord1::{allocator, rtt, uart, usb};
+use tangentbord1::{
+    board::Board,
+    event::Half,
+    keyboard::KeyboardConfig,
+    logger::Logger,
+    rgb::Rgb,
+    util::{stall, wheel},
+    ws2812::Ws2812,
+    {allocator, rtt, uart, usb},
+};
 use tgnt::layer::Layer;
 
 #[embassy_executor::main]
@@ -50,7 +54,7 @@ async fn main(_spawner: Spawner) {
 
     //Timer::after(Duration::from_millis(3000)).await;
 
-    let layers = include_bytes!("layers-right.pc");
+    let layers = include_bytes!("layers.pc");
     let Ok(layers): Result<Vec<Layer>, _> = postcard::from_bytes(layers) else {
         log::error!("Failed to deserialize layer config");
         stall().await
diff --git a/src/bin/.gitignore b/src/bin/.gitignore
deleted file mode 100644
index 6fd0ef0..0000000
--- a/src/bin/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-*.pc
diff --git a/src/lib.rs b/src/lib.rs
deleted file mode 100644
index dc2ea6d..0000000
--- a/src/lib.rs
+++ /dev/null
@@ -1,30 +0,0 @@
-#![no_std]
-#![feature(type_alias_impl_trait)]
-#![feature(split_array)]
-
-use embassy_rp::{
-    bind_interrupts,
-    peripherals::{UART0, USB},
-};
-
-extern crate alloc;
-
-pub mod allocator;
-pub mod board;
-pub mod keyboard;
-pub mod lights;
-pub mod logger;
-pub mod neopixel;
-pub mod panic_handler;
-pub mod rtt;
-pub mod uart;
-pub mod usb;
-pub mod util;
-pub mod ws2812;
-
-bind_interrupts! {
-    pub struct Irqs {
-        UART0_IRQ => embassy_rp::uart::BufferedInterruptHandler<UART0>;
-        USBCTRL_IRQ => embassy_rp::usb::InterruptHandler<USB>;
-    }
-}