chore: Release

Address @feschber review feedback on PR #441. The repeat-task cleanup
already releases the key with the correct CGKeyCode via the existing
key_event call at the end of the closure — this commit just expands
the surrounding comment to make that explicit and to document why
update_modifiers is intentionally NOT called from this path (Mac
CGKeyCode vs Linux evdev scancode collision).

No behavioral change.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.github/workflows/release.yml

@@ -174,13 +174,16 @@ jobs:
     steps:
     - name: Download build artifacts
       uses: actions/download-artifact@v4
+    - name: Get short SHA
+      id: vars
+      run: echo "short_sha=${GITHUB_SHA::7}" >> "$GITHUB_OUTPUT"
     - name: Create Pre-Release
       if: ${{ !startsWith(github.ref, 'refs/tags/') }}
       uses: softprops/action-gh-release@v2
       with:
         token: ${{ secrets.GITHUB_TOKEN }}
-        tag_name: ${{ github.event.inputs.name || github.ref_name }}
+        tag_name: ${{ format('{0}-{1}', github.event.inputs.name || github.ref_name, steps.vars.outputs.short_sha) }}
-        name: ${{ github.event.inputs.name || github.ref_name }}
+        name: ${{ format('{0}-{1}', github.event.inputs.name || github.ref_name, steps.vars.outputs.short_sha) }}
         prerelease: true
         generate_release_notes: true
         files: |

AGENTS.md

@@ -28,7 +28,7 @@ Lan Mouse is an open-source Software KVM sharing mouse/keyboard input across loc
 
 ## Feature & cfg discipline
 
-- Feature flags live in root `Cargo.toml`. Gate OS-specific modules with tight cfgs (e.g., `cfg(all(unix, feature = "layer_shell", not(target_os = "macos")))`).
+- Feature flags live in root `Cargo.toml`. Gate OS-specific modules with the configs exported in build.rs (e.g., `cfg(layer_shell)`).
 - Prefer module-level gating over per-function cfgs to avoid empty stubs.
 - New backends: add feature in `Cargo.toml`, create gated module, log backend selection.
 

Cargo.lock

@@ -1647,7 +1647,7 @@ dependencies = [
 
 [[package]]
 name = "input-capture"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "ashpd",
  "async-trait",
@@ -1677,7 +1677,7 @@ dependencies = [
 
 [[package]]
 name = "input-emulation"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "ashpd",
  "async-trait",
@@ -1703,7 +1703,7 @@ dependencies = [
 
 [[package]]
 name = "input-event"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "futures-core",
  "log",
@@ -1840,7 +1840,7 @@ dependencies = [
 
 [[package]]
 name = "lan-mouse"
-version = "0.10.0"
+version = "0.11.0"
 dependencies = [
  "clap",
  "env_logger",
@@ -1875,7 +1875,7 @@ dependencies = [
 
 [[package]]
 name = "lan-mouse-cli"
-version = "0.2.0"
+version = "0.3.0"
 dependencies = [
  "clap",
  "futures",
@@ -1886,7 +1886,7 @@ dependencies = [
 
 [[package]]
 name = "lan-mouse-gtk"
-version = "0.2.0"
+version = "0.3.0"
 dependencies = [
  "async-channel",
  "glib-build-tools",
@@ -1900,7 +1900,7 @@ dependencies = [
 
 [[package]]
 name = "lan-mouse-ipc"
-version = "0.2.0"
+version = "0.3.0"
 dependencies = [
  "futures",
  "log",
@@ -1913,7 +1913,7 @@ dependencies = [
 
 [[package]]
 name = "lan-mouse-proto"
-version = "0.2.0"
+version = "0.3.0"
 dependencies = [
  "input-event",
  "num_enum",

Cargo.toml

@@ -12,7 +12,7 @@ members = [
 [package]
 name = "lan-mouse"
 description = "Software KVM Switch / mouse & keyboard sharing software for Local Area Networks"
-version = "0.10.0"
+version = "0.11.0"
 edition = "2021"
 license = "GPL-3.0-or-later"
 repository = "https://github.com/feschber/lan-mouse"
@@ -27,13 +27,13 @@ panic = "abort"
 shadow-rs = "1.2.0"
 
 [dependencies]
-input-event = { path = "input-event", version = "0.3.0" }
+input-event = { path = "input-event", version = "0.4.0" }
-input-emulation = { path = "input-emulation", version = "0.3.0", default-features = false }
+input-emulation = { path = "input-emulation", version = "0.4.0", default-features = false }
-input-capture = { path = "input-capture", version = "0.3.0", default-features = false }
+input-capture = { path = "input-capture", version = "0.4.0", default-features = false }
-lan-mouse-cli = { path = "lan-mouse-cli", version = "0.2.0" }
+lan-mouse-cli = { path = "lan-mouse-cli", version = "0.3.0" }
-lan-mouse-gtk = { path = "lan-mouse-gtk", version = "0.2.0", optional = true }
+lan-mouse-gtk = { path = "lan-mouse-gtk", version = "0.3.0", optional = true }
-lan-mouse-ipc = { path = "lan-mouse-ipc", version = "0.2.0" }
+lan-mouse-ipc = { path = "lan-mouse-ipc", version = "0.3.0" }
-lan-mouse-proto = { path = "lan-mouse-proto", version = "0.2.0" }
+lan-mouse-proto = { path = "lan-mouse-proto", version = "0.3.0" }
 shadow-rs = { version = "1.2.0", features = ["metadata"] }
 
 hickory-resolver = "0.25.2"

build.rs

@@ -5,4 +5,57 @@ fn main() {
         .deny_const(Default::default())
         .build()
         .expect("shadow build");
+
+    let unix = cfg!(unix);
+    let macos = cfg!(target_os = "macos");
+
+    let layer_shell_capture = cfg!(feature = "layer_shell_capture");
+    let libei_capture = cfg!(feature = "libei_capture");
+    let x11_capture = cfg!(feature = "x11_capture");
+
+    let libei_emulation = cfg!(feature = "libei_emulation");
+    let x11_emulation = cfg!(feature = "x11_emulation");
+    let wlroots_emulation = cfg!(feature = "wlroots_emulation");
+    let rdp_emulation = cfg!(feature = "rdp_emulation");
+
+    let layer_shell_capture = unix && !macos && layer_shell_capture;
+    let libei_capture = unix && !macos && libei_capture;
+    let x11_capture = unix && !macos && x11_capture;
+
+    let libei_emulation = unix && !macos && libei_emulation;
+    let rdp_emulation = unix && !macos && rdp_emulation;
+    let wlroots_emulation = unix && !macos && wlroots_emulation;
+    let x11_emulation = unix && !macos && x11_emulation;
+
+    println!("cargo::rustc-check-cfg=cfg(layer_shell_capture)");
+    println!("cargo::rustc-check-cfg=cfg(libei_capture)");
+    println!("cargo::rustc-check-cfg=cfg(x11_capture)");
+
+    println!("cargo::rustc-check-cfg=cfg(libei_emulation)");
+    println!("cargo::rustc-check-cfg=cfg(rdp_emulation)");
+    println!("cargo::rustc-check-cfg=cfg(wlroots_emulation)");
+    println!("cargo::rustc-check-cfg=cfg(x11_emulation)");
+
+    if layer_shell_capture {
+        println!("cargo::rustc-cfg=layer_shell_capture");
+    }
+    if libei_capture {
+        println!("cargo::rustc-cfg=libei_capture");
+    }
+    if x11_capture {
+        println!("cargo::rustc-cfg=x11_capture");
+    }
+
+    if libei_emulation {
+        println!("cargo::rustc-cfg=libei_emulation");
+    }
+    if rdp_emulation {
+        println!("cargo::rustc-cfg=rdp_emulation");
+    }
+    if wlroots_emulation {
+        println!("cargo::rustc-cfg=wlroots_emulation");
+    }
+    if x11_emulation {
+        println!("cargo::rustc-cfg=x11_emulation");
+    }
 }

input-capture/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "input-capture"
 description = "cross-platform input-capture library used by lan-mouse"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 license = "GPL-3.0-or-later"
 repository = "https://github.com/feschber/lan-mouse"
@@ -10,7 +10,7 @@ repository = "https://github.com/feschber/lan-mouse"
 futures = "0.3.28"
 futures-core = "0.3.30"
 log = "0.4.22"
-input-event = { path = "../input-event", version = "0.3.0" }
+input-event = { path = "../input-event", version = "0.4.0" }
 memmap = "0.7"
 tempfile = "3.25.0"
 thiserror = "2.0.0"

input-emulation/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "input-emulation"
 description = "cross-platform input emulation library used by lan-mouse"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 license = "GPL-3.0-or-later"
 repository = "https://github.com/feschber/lan-mouse"
@@ -10,7 +10,7 @@ repository = "https://github.com/feschber/lan-mouse"
 async-trait = "0.1.80"
 futures = "0.3.28"
 log = "0.4.22"
-input-event = { path = "../input-event", version = "0.3.0" }
+input-event = { path = "../input-event", version = "0.4.0" }
 thiserror = "2.0.0"
 tokio = { version = "1.32.0", features = [
     "io-util",

input-emulation/src/macos.rs

@@ -106,8 +106,19 @@ impl MacOSEmulation {
                     }
                 }
             }
-            // release key when cancelled
+            // Always release the key with the correct CGKeyCode, regardless of
-            update_modifiers(&modifiers, key as u32, 0);
+            // whether the repeat loop ran. This matches @feschber's review
+            // request: "still release the key repeat task but with the correct
+            // code."
+            //
+            // Do NOT call update_modifiers here: `key` is a Mac CGKeyCode but
+            // update_modifiers expects a Linux evdev scancode, and the two
+            // codespaces collide (e.g. Mac LeftShift=56 == Linux KeyLeftAlt=56,
+            // Mac Down=125 == Linux KeyLeftMeta=125), corrupting modifier
+            // state for chords like Shift+Option+X or Cmd+Down. Modifier state
+            // is owned by the main consume() loop, which already calls
+            // update_modifiers with the correct Linux scancode on the real key
+            // release event from the client.
             key_event(event_source.clone(), key, 0, modifiers.get());
         });
         self.repeat_task = Some(repeat_task);
@@ -157,6 +168,19 @@ extern "C" {
     fn AXIsProcessTrusted() -> bool;
 }
 
+/// Mac virtual key codes for the four arrow keys.
+const MAC_KEY_LEFT: u16 = 0x7B;
+const MAC_KEY_RIGHT: u16 = 0x7C;
+const MAC_KEY_DOWN: u16 = 0x7D;
+const MAC_KEY_UP: u16 = 0x7E;
+
+fn is_arrow_key(key: u16) -> bool {
+    matches!(
+        key,
+        MAC_KEY_LEFT | MAC_KEY_RIGHT | MAC_KEY_DOWN | MAC_KEY_UP
+    )
+}
+
 fn key_event(event_source: CGEventSource, key: u16, state: u8, modifiers: XMods) {
     let event = match CGEvent::new_keyboard_event(event_source, key, state != 0) {
         Ok(e) => e,
@@ -165,7 +189,15 @@ fn key_event(event_source: CGEventSource, key: u16, state: u8, modifiers: XMods)
             return;
         }
     };
-    event.set_flags(to_cgevent_flags(modifiers));
+    let mut flags = to_cgevent_flags(modifiers);
+    // Hardware-generated arrow keys on macOS carry NumericPad + SecondaryFn.
+    // CGEventTap-based hotkey matchers (e.g. tiling window managers) check
+    // these flags to recognize navigation keys; without them synthesized
+    // arrow chords fall through to the focused app.
+    if is_arrow_key(key) {
+        flags |= CGEventFlags::CGEventFlagNumericPad | CGEventFlags::CGEventFlagSecondaryFn;
+    }
+    event.set_flags(flags);
     event.post(CGEventTapLocation::HID);
     log::trace!("key event: {key} {state}");
 }

input-event/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "input-event"
 description = "cross-platform input-event types for input-capture / input-emulation"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 license = "GPL-3.0-or-later"
 repository = "https://github.com/feschber/lan-mouse"

lan-mouse-cli/Cargo.toml

@@ -1,14 +1,14 @@
 [package]
 name = "lan-mouse-cli"
 description = "CLI Frontend for lan-mouse"
-version = "0.2.0"
+version = "0.3.0"
 edition = "2021"
 license = "GPL-3.0-or-later"
 repository = "https://github.com/feschber/lan-mouse"
 
 [dependencies]
 futures = "0.3.30"
-lan-mouse-ipc = { path = "../lan-mouse-ipc", version = "0.2.0" }
+lan-mouse-ipc = { path = "../lan-mouse-ipc", version = "0.3.0" }
 clap = { version = "4.4.11", features = ["derive"] }
 thiserror = "2.0.0"
 tokio = { version = "1.32.0", features = [

lan-mouse-gtk/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "lan-mouse-gtk"
 description = "GTK4 / Libadwaita Frontend for lan-mouse"
-version = "0.2.0"
+version = "0.3.0"
 edition = "2021"
 license = "GPL-3.0-or-later"
 repository = "https://github.com/feschber/lan-mouse"
@@ -12,7 +12,7 @@ adw = { package = "libadwaita", version = "0.7.0", features = ["v1_1"] }
 async-channel = { version = "2.1.1" }
 hostname = "0.4.0"
 log = "0.4.20"
-lan-mouse-ipc = { path = "../lan-mouse-ipc", version = "0.2.0" }
+lan-mouse-ipc = { path = "../lan-mouse-ipc", version = "0.3.0" }
 thiserror = "2.0.0"
 
 [build-dependencies]

lan-mouse-ipc/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "lan-mouse-ipc"
 description = "library for communication between lan-mouse service and frontends"
-version = "0.2.0"
+version = "0.3.0"
 edition = "2021"
 license = "GPL-3.0-or-later"
 repository = "https://github.com/feschber/lan-mouse"

lan-mouse-proto/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "lan-mouse-proto"
 description = "network protocol for lan-mouse"
-version = "0.2.0"
+version = "0.3.0"
 edition = "2021"
 license = "GPL-3.0-or-later"
 repository = "https://github.com/feschber/lan-mouse"
@@ -9,5 +9,5 @@ repository = "https://github.com/feschber/lan-mouse"
 [dependencies]
 num_enum = "0.7.2"
 thiserror = "2.0.0"
-input-event = { path = "../input-event", version = "0.3.0" }
+input-event = { path = "../input-event", version = "0.4.0" }
 paste = "1.0"

src/config.rs

@@ -118,13 +118,13 @@ pub enum Command {
 
 #[derive(Clone, Copy, Debug, Deserialize, Eq, PartialEq, Serialize, ValueEnum)]
 pub enum CaptureBackend {
-    #[cfg(all(unix, feature = "libei_capture", not(target_os = "macos")))]
+    #[cfg(libei_capture)]
     #[serde(rename = "input-capture-portal")]
     InputCapturePortal,
-    #[cfg(all(unix, feature = "layer_shell_capture", not(target_os = "macos")))]
+    #[cfg(layer_shell_capture)]
     #[serde(rename = "layer-shell")]
     LayerShell,
-    #[cfg(all(unix, feature = "x11_capture", not(target_os = "macos")))]
+    #[cfg(x11_capture)]
     #[serde(rename = "x11")]
     X11,
     #[cfg(windows)]
@@ -140,11 +140,11 @@ pub enum CaptureBackend {
 impl Display for CaptureBackend {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            #[cfg(all(unix, feature = "libei_capture", not(target_os = "macos")))]
+            #[cfg(libei_capture)]
             CaptureBackend::InputCapturePortal => write!(f, "input-capture-portal"),
-            #[cfg(all(unix, feature = "layer_shell_capture", not(target_os = "macos")))]
+            #[cfg(layer_shell_capture)]
             CaptureBackend::LayerShell => write!(f, "layer-shell"),
-            #[cfg(all(unix, feature = "x11_capture", not(target_os = "macos")))]
+            #[cfg(x11_capture)]
             CaptureBackend::X11 => write!(f, "X11"),
             #[cfg(windows)]
             CaptureBackend::Windows => write!(f, "windows"),
@@ -158,11 +158,11 @@ impl Display for CaptureBackend {
 impl From<CaptureBackend> for input_capture::Backend {
     fn from(backend: CaptureBackend) -> Self {
         match backend {
-            #[cfg(all(unix, feature = "libei_capture", not(target_os = "macos")))]
+            #[cfg(libei_capture)]
             CaptureBackend::InputCapturePortal => Self::InputCapturePortal,
-            #[cfg(all(unix, feature = "layer_shell_capture", not(target_os = "macos")))]
+            #[cfg(layer_shell_capture)]
             CaptureBackend::LayerShell => Self::LayerShell,
-            #[cfg(all(unix, feature = "x11_capture", not(target_os = "macos")))]
+            #[cfg(x11_capture)]
             CaptureBackend::X11 => Self::X11,
             #[cfg(windows)]
             CaptureBackend::Windows => Self::Windows,
@@ -175,16 +175,16 @@ impl From<CaptureBackend> for input_capture::Backend {
 
 #[derive(Clone, Copy, Debug, Deserialize, Eq, PartialEq, Serialize, ValueEnum)]
 pub enum EmulationBackend {
-    #[cfg(all(unix, feature = "wlroots_emulation", not(target_os = "macos")))]
+    #[cfg(wlroots_emulation)]
     #[serde(rename = "wlroots")]
     Wlroots,
-    #[cfg(all(unix, feature = "libei_emulation", not(target_os = "macos")))]
+    #[cfg(libei_emulation)]
     #[serde(rename = "libei")]
     Libei,
-    #[cfg(all(unix, feature = "rdp_emulation", not(target_os = "macos")))]
+    #[cfg(rdp_emulation)]
     #[serde(rename = "xdp")]
     Xdp,
-    #[cfg(all(unix, feature = "x11_emulation", not(target_os = "macos")))]
+    #[cfg(x11_emulation)]
     #[serde(rename = "x11")]
     X11,
     #[cfg(windows)]
@@ -200,13 +200,13 @@ pub enum EmulationBackend {
 impl From<EmulationBackend> for input_emulation::Backend {
     fn from(backend: EmulationBackend) -> Self {
         match backend {
-            #[cfg(all(unix, feature = "wlroots_emulation", not(target_os = "macos")))]
+            #[cfg(wlroots_emulation)]
             EmulationBackend::Wlroots => Self::Wlroots,
-            #[cfg(all(unix, feature = "libei_emulation", not(target_os = "macos")))]
+            #[cfg(libei_emulation)]
             EmulationBackend::Libei => Self::Libei,
-            #[cfg(all(unix, feature = "rdp_emulation", not(target_os = "macos")))]
+            #[cfg(rdp_emulation)]
             EmulationBackend::Xdp => Self::Xdp,
-            #[cfg(all(unix, feature = "x11_emulation", not(target_os = "macos")))]
+            #[cfg(x11_emulation)]
             EmulationBackend::X11 => Self::X11,
             #[cfg(windows)]
             EmulationBackend::Windows => Self::Windows,
@@ -220,13 +220,13 @@ impl From<EmulationBackend> for input_emulation::Backend {
 impl Display for EmulationBackend {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
-            #[cfg(all(unix, feature = "wlroots_emulation", not(target_os = "macos")))]
+            #[cfg(wlroots_emulation)]
             EmulationBackend::Wlroots => write!(f, "wlroots"),
-            #[cfg(all(unix, feature = "libei_emulation", not(target_os = "macos")))]
+            #[cfg(libei_emulation)]
             EmulationBackend::Libei => write!(f, "libei"),
-            #[cfg(all(unix, feature = "rdp_emulation", not(target_os = "macos")))]
+            #[cfg(rdp_emulation)]
             EmulationBackend::Xdp => write!(f, "xdg-desktop-portal"),
-            #[cfg(all(unix, feature = "x11_emulation", not(target_os = "macos")))]
+            #[cfg(x11_emulation)]
             EmulationBackend::X11 => write!(f, "X11"),
             #[cfg(windows)]
             EmulationBackend::Windows => write!(f, "windows"),