fix sizeof usize assumed to be 8

closes #141

Cargo.lock

@@ -1312,7 +1312,6 @@ dependencies = [
  "serde_json",
  "slab",
  "tempfile",
- "thiserror",
  "tokio",
  "toml",
  "wayland-client",
@@ -2012,18 +2011,18 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.61"
+version = "1.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c546c80d6be4bc6a00c0f01730c08df82eaa7a7a61f11d656526506112cc1709"
+checksum = "03468839009160513471e86a034bb2c5c0e4baae3b43f79ffc55c4a5427b3297"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.61"
+version = "1.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46c3384250002a6d5af4d114f2845d37b57521033f30d5c3f46c4d70e1197533"
+checksum = "c61f3ba182994efc43764a46c018c347bc492c79f024e705f46567b418f6d4f7"
 dependencies = [
  "proc-macro2",
  "quote",

Cargo.toml

@@ -36,7 +36,6 @@ num_enum = "0.7.2"
 hostname = "0.4.0"
 slab = "0.4.9"
 endi = "1.1.0"
-thiserror = "1.0.61"
 
 [target.'cfg(unix)'.dependencies]
 libc = "0.2.148"

README.md

@@ -69,15 +69,7 @@ Precompiled release binaries for Windows, MacOS and Linux are available in the [
 For Windows, the depenedencies are included in the .zip file, for other operating systems see [Installing Dependencies](#installing-dependencies).
 
 ### Arch Linux
-
+Lan Mouse is available on the AUR:
-Lan Mouse can be installed from the [official repositories](https://archlinux.org/packages/extra/x86_64/lan-mouse/):
-
-```sh
-pacman -S lan-mouse
-```
-
-It is also available on the AUR:
-
 ```sh
 # git version (includes latest changes)
 paru -S lan-mouse-git

config.toml

@@ -1,7 +1,5 @@
 # example configuration
 
-# capture_backend = "LayerShell"
-
 # release bind
 release_bind = [ "KeyA", "KeyS", "KeyD", "KeyF" ]
 

src/capture.rs

@@ -4,14 +4,9 @@ use futures_core::Stream;
 
 use crate::{
     client::{ClientEvent, ClientHandle},
-    config::CaptureBackend,
     event::Event,
 };
 
-use self::error::CaptureCreationError;
-
-pub mod error;
-
 #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
 pub mod libei;
 
@@ -30,42 +25,24 @@ pub mod x11;
 /// fallback input capture (does not produce events)
 pub mod dummy;
 
-#[allow(unreachable_code)]
+pub async fn create() -> Box<dyn InputCapture<Item = io::Result<(ClientHandle, Event)>>> {
-pub async fn create(
-    backend: Option<CaptureBackend>,
-) -> Result<Box<dyn InputCapture<Item = io::Result<(ClientHandle, Event)>>>, CaptureCreationError> {
-    if let Some(backend) = backend {
-        return match backend {
-            #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
-            CaptureBackend::InputCapturePortal => {
-                Ok(Box::new(libei::LibeiInputCapture::new().await?))
-            }
-            #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-            CaptureBackend::LayerShell => Ok(Box::new(wayland::WaylandInputCapture::new()?)),
-            #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
-            CaptureBackend::X11 => Ok(Box::new(x11::X11InputCapture::new()?)),
-            #[cfg(windows)]
-            CaptureBackend::Windows => Ok(Box::new(windows::WindowsInputCapture::new())),
-            #[cfg(target_os = "macos")]
-            CaptureBackend::MacOs => Ok(Box::new(macos::MacOSInputCapture::new()?)),
-            CaptureBackend::Dummy => Ok(Box::new(dummy::DummyInputCapture::new())),
-        };
-    }
-
     #[cfg(target_os = "macos")]
     match macos::MacOSInputCapture::new() {
-        Ok(p) => return Ok(Box::new(p)),
+        Ok(p) => return Box::new(p),
         Err(e) => log::info!("macos input capture not available: {e}"),
     }
 
     #[cfg(windows)]
-    return Ok(Box::new(windows::WindowsInputCapture::new()));
+    match windows::WindowsInputCapture::new() {
+        Ok(p) => return Box::new(p),
+        Err(e) => log::info!("windows input capture not available: {e}"),
+    }
 
     #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
     match libei::LibeiInputCapture::new().await {
         Ok(p) => {
             log::info!("using libei input capture");
-            return Ok(Box::new(p));
+            return Box::new(p);
         }
         Err(e) => log::info!("libei input capture not available: {e}"),
     }
@@ -74,7 +51,7 @@ pub async fn create(
     match wayland::WaylandInputCapture::new() {
         Ok(p) => {
             log::info!("using layer-shell input capture");
-            return Ok(Box::new(p));
+            return Box::new(p);
         }
         Err(e) => log::info!("layer_shell input capture not available: {e}"),
     }
@@ -83,13 +60,13 @@ pub async fn create(
     match x11::X11InputCapture::new() {
         Ok(p) => {
             log::info!("using x11 input capture");
-            return Ok(Box::new(p));
+            return Box::new(p);
         }
         Err(e) => log::info!("x11 input capture not available: {e}"),
     }
 
     log::error!("falling back to dummy input capture");
-    Ok(Box::new(dummy::DummyInputCapture::new()))
+    Box::new(dummy::DummyInputCapture::new())
 }
 
 pub trait InputCapture: Stream<Item = io::Result<(ClientHandle, Event)>> + Unpin {

src/capture/error.rs

@@ -1,140 +0,0 @@
-use std::fmt::Display;
-use thiserror::Error;
-
-#[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-use std::io;
-#[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-use wayland_client::{
-    backend::WaylandError,
-    globals::{BindError, GlobalError},
-    ConnectError, DispatchError,
-};
-
-#[derive(Debug, Error)]
-pub enum CaptureCreationError {
-    #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
-    Libei(#[from] LibeiCaptureCreationError),
-    #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-    LayerShell(#[from] LayerShellCaptureCreationError),
-    #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
-    X11(#[from] X11InputCaptureCreationError),
-    #[cfg(target_os = "macos")]
-    Macos(#[from] MacOSInputCaptureCreationError),
-    #[cfg(windows)]
-    Windows,
-}
-
-impl Display for CaptureCreationError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        let reason = match self {
-            #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
-            CaptureCreationError::Libei(reason) => {
-                format!("error creating portal backend: {reason}")
-            }
-            #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-            CaptureCreationError::LayerShell(reason) => {
-                format!("error creating layer-shell backend: {reason}")
-            }
-            #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
-            CaptureCreationError::X11(e) => format!("{e}"),
-            #[cfg(target_os = "macos")]
-            CaptureCreationError::Macos(e) => format!("{e}"),
-            #[cfg(windows)]
-            CaptureCreationError::Windows => String::from(""),
-        };
-        write!(f, "could not create input capture: {reason}")
-    }
-}
-
-#[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
-#[derive(Debug, Error)]
-pub enum LibeiCaptureCreationError {
-    Ashpd(#[from] ashpd::Error),
-}
-
-#[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
-impl Display for LibeiCaptureCreationError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        match self {
-            LibeiCaptureCreationError::Ashpd(portal_error) => write!(f, "{portal_error}"),
-        }
-    }
-}
-
-#[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-#[derive(Debug, Error)]
-pub struct WaylandBindError {
-    inner: BindError,
-    protocol: &'static str,
-}
-#[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-impl WaylandBindError {
-    pub(crate) fn new(inner: BindError, protocol: &'static str) -> Self {
-        Self { inner, protocol }
-    }
-}
-
-#[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-impl Display for WaylandBindError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(
-            f,
-            "{} protocol not supported: {}",
-            self.protocol, self.inner
-        )
-    }
-}
-
-#[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-#[derive(Debug, Error)]
-pub enum LayerShellCaptureCreationError {
-    Connect(#[from] ConnectError),
-    Global(#[from] GlobalError),
-    Wayland(#[from] WaylandError),
-    Bind(#[from] WaylandBindError),
-    Dispatch(#[from] DispatchError),
-    Io(#[from] io::Error),
-}
-
-#[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-impl Display for LayerShellCaptureCreationError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        match self {
-            LayerShellCaptureCreationError::Bind(e) => write!(f, "{e}"),
-            LayerShellCaptureCreationError::Connect(e) => {
-                write!(f, "could not connect to wayland compositor: {e}")
-            }
-            LayerShellCaptureCreationError::Global(e) => write!(f, "wayland error: {e}"),
-            LayerShellCaptureCreationError::Wayland(e) => write!(f, "wayland error: {e}"),
-            LayerShellCaptureCreationError::Dispatch(e) => {
-                write!(f, "error dispatching wayland events: {e}")
-            }
-            LayerShellCaptureCreationError::Io(e) => write!(f, "io error: {e}"),
-        }
-    }
-}
-
-#[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
-#[derive(Debug, Error)]
-pub enum X11InputCaptureCreationError {
-    NotImplemented,
-}
-
-#[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
-impl Display for X11InputCaptureCreationError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "X11 input capture is not yet implemented :(")
-    }
-}
-#[cfg(target_os = "macos")]
-#[derive(Debug, Error)]
-pub enum MacOSInputCaptureCreationError {
-    NotImplemented,
-}
-
-#[cfg(target_os = "macos")]
-impl Display for MacOSInputCaptureCreationError {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(f, "macos input capture is not yet implemented :(")
-    }
-}

src/capture/libei.rs

@@ -36,8 +36,6 @@ use crate::{
     event::{Event, KeyboardEvent, PointerEvent},
 };
 
-use super::error::LibeiCaptureCreationError;
-
 #[derive(Debug)]
 enum ProducerEvent {
     Release,
@@ -133,7 +131,7 @@ impl<'a> Drop for LibeiInputCapture<'a> {
 
 async fn create_session<'a>(
     input_capture: &'a InputCapture<'a>,
-) -> std::result::Result<(Session<'a>, BitFlags<Capabilities>), ashpd::Error> {
+) -> Result<(Session<'a>, BitFlags<Capabilities>)> {
     log::debug!("creating input capture session");
     let (session, capabilities) = loop {
         match input_capture
@@ -215,7 +213,7 @@ async fn wait_for_active_client(
 }
 
 impl<'a> LibeiInputCapture<'a> {
-    pub async fn new() -> std::result::Result<Self, LibeiCaptureCreationError> {
+    pub async fn new() -> Result<Self> {
         let input_capture = Box::pin(InputCapture::new().await?);
         let input_capture_ptr = input_capture.as_ref().get_ref() as *const InputCapture<'static>;
         let mut first_session = Some(create_session(unsafe { &*input_capture_ptr }).await?);

src/capture/macos.rs

@@ -1,7 +1,7 @@
-use crate::capture::error::MacOSInputCaptureCreationError;
 use crate::capture::InputCapture;
 use crate::client::{ClientEvent, ClientHandle};
 use crate::event::Event;
+use anyhow::{anyhow, Result};
 use futures_core::Stream;
 use std::task::{Context, Poll};
 use std::{io, pin::Pin};
@@ -9,8 +9,8 @@ use std::{io, pin::Pin};
 pub struct MacOSInputCapture;
 
 impl MacOSInputCapture {
-    pub fn new() -> std::result::Result<Self, MacOSInputCaptureCreationError> {
+    pub fn new() -> Result<Self> {
-        Err(MacOSInputCaptureCreationError::NotImplemented)
+        Err(anyhow!("not yet implemented"))
     }
 }
 

src/capture/wayland.rs

@@ -1,8 +1,9 @@
 use crate::{
-    capture::{error::WaylandBindError, InputCapture},
+    capture::InputCapture,
     client::{ClientEvent, ClientHandle, Position},
 };
 
+use anyhow::{anyhow, Result};
 use futures_core::Stream;
 use memmap::MmapOptions;
 use std::{
@@ -67,8 +68,6 @@ use tempfile;
 
 use crate::event::{Event, KeyboardEvent, PointerEvent};
 
-use super::error::LayerShellCaptureCreationError;
-
 struct Globals {
     compositor: wl_compositor::WlCompositor,
     pointer_constraints: ZwpPointerConstraintsV1,
@@ -259,37 +258,64 @@ fn draw(f: &mut File, (width, height): (u32, u32)) {
 }
 
 impl WaylandInputCapture {
-    pub fn new() -> std::result::Result<Self, LayerShellCaptureCreationError> {
+    pub fn new() -> Result<Self> {
-        let conn = Connection::connect_to_env()?;
+        let conn = match Connection::connect_to_env() {
-        let (g, mut queue) = registry_queue_init::<State>(&conn)?;
+            Ok(c) => c,
+            Err(e) => return Err(anyhow!("could not connect to wayland compositor: {e:?}")),
+        };
+
+        let (g, mut queue) = match registry_queue_init::<State>(&conn) {
+            Ok(q) => q,
+            Err(e) => return Err(anyhow!("failed to initialize wl_registry: {e:?}")),
+        };
 
         let qh = queue.handle();
 
-        let compositor: wl_compositor::WlCompositor = g
+        let compositor: wl_compositor::WlCompositor = match g.bind(&qh, 4..=5, ()) {
-            .bind(&qh, 4..=5, ())
+            Ok(compositor) => compositor,
-            .map_err(|e| WaylandBindError::new(e, "wl_compositor 4..=5"))?;
+            Err(_) => return Err(anyhow!("wl_compositor >= v4 not supported")),
-        let xdg_output_manager: ZxdgOutputManagerV1 = g
+        };
-            .bind(&qh, 1..=3, ())
+
-            .map_err(|e| WaylandBindError::new(e, "xdg_output_manager 1..=3"))?;
+        let xdg_output_manager: ZxdgOutputManagerV1 = match g.bind(&qh, 1..=3, ()) {
-        let shm: wl_shm::WlShm = g
+            Ok(xdg_output_manager) => xdg_output_manager,
-            .bind(&qh, 1..=1, ())
+            Err(_) => return Err(anyhow!("xdg_output not supported!")),
-            .map_err(|e| WaylandBindError::new(e, "wl_shm"))?;
+        };
-        let layer_shell: ZwlrLayerShellV1 = g
+
-            .bind(&qh, 3..=4, ())
+        let shm: wl_shm::WlShm = match g.bind(&qh, 1..=1, ()) {
-            .map_err(|e| WaylandBindError::new(e, "wlr_layer_shell 3..=4"))?;
+            Ok(wl_shm) => wl_shm,
-        let seat: wl_seat::WlSeat = g
+            Err(_) => return Err(anyhow!("wl_shm v1 not supported")),
-            .bind(&qh, 7..=8, ())
+        };
-            .map_err(|e| WaylandBindError::new(e, "wl_seat 7..=8"))?;
+
+        let layer_shell: ZwlrLayerShellV1 = match g.bind(&qh, 3..=4, ()) {
+            Ok(layer_shell) => layer_shell,
+            Err(_) => return Err(anyhow!("zwlr_layer_shell_v1 >= v3 not supported - required to display a surface at the edge of the screen")),
+        };
+
+        let seat: wl_seat::WlSeat = match g.bind(&qh, 7..=8, ()) {
+            Ok(wl_seat) => wl_seat,
+            Err(_) => return Err(anyhow!("wl_seat >= v7 not supported")),
+        };
+
+        let pointer_constraints: ZwpPointerConstraintsV1 = match g.bind(&qh, 1..=1, ()) {
+            Ok(pointer_constraints) => pointer_constraints,
+            Err(_) => return Err(anyhow!("zwp_pointer_constraints_v1 not supported")),
+        };
+
+        let relative_pointer_manager: ZwpRelativePointerManagerV1 = match g.bind(&qh, 1..=1, ()) {
+            Ok(relative_pointer_manager) => relative_pointer_manager,
+            Err(_) => return Err(anyhow!("zwp_relative_pointer_manager_v1 not supported")),
+        };
+
+        let shortcut_inhibit_manager: ZwpKeyboardShortcutsInhibitManagerV1 =
+            match g.bind(&qh, 1..=1, ()) {
+                Ok(shortcut_inhibit_manager) => shortcut_inhibit_manager,
+                Err(_) => {
+                    return Err(anyhow!(
+                        "zwp_keyboard_shortcuts_inhibit_manager_v1 not supported"
+                    ))
+                }
+            };
 
-        let pointer_constraints: ZwpPointerConstraintsV1 = g
-            .bind(&qh, 1..=1, ())
-            .map_err(|e| WaylandBindError::new(e, "zwp_pointer_constraints_v1"))?;
-        let relative_pointer_manager: ZwpRelativePointerManagerV1 = g
-            .bind(&qh, 1..=1, ())
-            .map_err(|e| WaylandBindError::new(e, "zwp_relative_pointer_manager_v1"))?;
-        let shortcut_inhibit_manager: ZwpKeyboardShortcutsInhibitManagerV1 = g
-            .bind(&qh, 1..=1, ())
-            .map_err(|e| WaylandBindError::new(e, "zwp_keyboard_shortcuts_inhibit_manager_v1"))?;
         let outputs = vec![];
 
         let g = Globals {

src/capture/windows.rs

@@ -96,7 +96,8 @@ unsafe fn get_event_tid() -> Option<u32> {
 static mut ENTRY_POINT: (i32, i32) = (0, 0);
 
 fn to_mouse_event(wparam: WPARAM, lparam: LPARAM) -> Option<PointerEvent> {
-    let mouse_low_level: MSLLHOOKSTRUCT = unsafe { *(lparam.0 as *const MSLLHOOKSTRUCT) };
+    let mouse_low_level: MSLLHOOKSTRUCT =
+        unsafe { *std::mem::transmute::<LPARAM, *const MSLLHOOKSTRUCT>(lparam) };
     match wparam {
         WPARAM(p) if p == WM_LBUTTONDOWN as usize => Some(PointerEvent::Button {
             time: 0,
@@ -166,7 +167,8 @@ fn to_mouse_event(wparam: WPARAM, lparam: LPARAM) -> Option<PointerEvent> {
 }
 
 unsafe fn to_key_event(wparam: WPARAM, lparam: LPARAM) -> Option<KeyboardEvent> {
-    let kybrdllhookstruct: KBDLLHOOKSTRUCT = *(lparam.0 as *const KBDLLHOOKSTRUCT);
+    let kybrdllhookstruct: KBDLLHOOKSTRUCT =
+        *std::mem::transmute::<LPARAM, *const KBDLLHOOKSTRUCT>(lparam);
     let mut scan_code = kybrdllhookstruct.scanCode;
     log::trace!("scan_code: {scan_code}");
     if kybrdllhookstruct.flags.contains(LLKHF_EXTENDED) {
@@ -245,7 +247,8 @@ unsafe fn check_client_activation(wparam: WPARAM, lparam: LPARAM) -> bool {
     if wparam.0 != WM_MOUSEMOVE as usize {
         return ACTIVE_CLIENT.is_some();
     }
-    let mouse_low_level: MSLLHOOKSTRUCT = *(lparam.0 as *const MSLLHOOKSTRUCT);
+    let mouse_low_level: MSLLHOOKSTRUCT =
+        unsafe { *std::mem::transmute::<LPARAM, *const MSLLHOOKSTRUCT>(lparam) };
     static mut PREV_POS: Option<(i32, i32)> = None;
     let curr_pos = (mouse_low_level.pt.x, mouse_low_level.pt.y);
     let prev_pos = PREV_POS.unwrap_or(curr_pos);
@@ -575,7 +578,7 @@ fn update_clients(client_event: ClientEvent) {
 }
 
 impl WindowsInputCapture {
-    pub(crate) fn new() -> Self {
+    pub(crate) fn new() -> Result<Self> {
         unsafe {
             let (tx, rx) = channel(10);
             EVENT_TX.replace(tx);
@@ -583,10 +586,10 @@ impl WindowsInputCapture {
             let msg_thread = Some(thread::spawn(|| message_thread(ready_tx)));
             /* wait for thread to set its id */
             ready_rx.recv().expect("channel closed");
-            Self {
+            Ok(Self {
                 msg_thread,
                 event_rx: rx,
-            }
+            })
         }
     }
 }

src/capture/x11.rs

@@ -1,3 +1,4 @@
+use anyhow::{anyhow, Result};
 use std::io;
 use std::task::Poll;
 
@@ -8,13 +9,11 @@ use crate::event::Event;
 
 use crate::client::{ClientEvent, ClientHandle};
 
-use super::error::X11InputCaptureCreationError;
-
 pub struct X11InputCapture {}
 
 impl X11InputCapture {
-    pub fn new() -> std::result::Result<Self, X11InputCaptureCreationError> {
+    pub fn new() -> Result<Self> {
-        Err(X11InputCaptureCreationError::NotImplemented)
+        Err(anyhow!("not implemented"))
     }
 }
 

src/capture_test.rs

@@ -1,6 +1,5 @@
 use crate::capture;
 use crate::client::{ClientEvent, Position};
-use crate::config::Config;
 use crate::event::{Event, KeyboardEvent};
 use anyhow::{anyhow, Result};
 use futures::StreamExt;
@@ -13,14 +12,12 @@ pub fn run() -> Result<()> {
         .enable_time()
         .build()?;
 
-    let config = Config::new()?;
+    runtime.block_on(LocalSet::new().run_until(input_capture_test()))
-
-    runtime.block_on(LocalSet::new().run_until(input_capture_test(config)))
 }
 
-async fn input_capture_test(config: Config) -> Result<()> {
+async fn input_capture_test() -> Result<()> {
     log::info!("creating input capture");
-    let mut input_capture = capture::create(config.capture_backend).await?;
+    let mut input_capture = capture::create().await;
     log::info!("creating clients");
     input_capture.notify(ClientEvent::Create(0, Position::Left))?;
     input_capture.notify(ClientEvent::Create(1, Position::Right))?;

src/config.rs

@@ -1,5 +1,5 @@
 use anyhow::Result;
-use clap::{Parser, ValueEnum};
+use clap::Parser;
 use serde::{Deserialize, Serialize};
 use std::collections::HashSet;
 use std::env;
@@ -15,7 +15,6 @@ pub const DEFAULT_PORT: u16 = 4242;
 
 #[derive(Serialize, Deserialize, Debug)]
 pub struct ConfigToml {
-    pub capture_backend: Option<CaptureBackend>,
     pub port: Option<u16>,
     pub frontend: Option<String>,
     pub release_bind: Option<Vec<scancode::Linux>>,
@@ -27,7 +26,6 @@ pub struct ConfigToml {
 
 #[derive(Serialize, Deserialize, Debug, Eq, PartialEq)]
 pub struct TomlClient {
-    pub capture_backend: Option<CaptureBackend>,
     pub hostname: Option<String>,
     pub host_name: Option<String>,
     pub ips: Option<Vec<IpAddr>>,
@@ -70,34 +68,8 @@ struct CliArgs {
     /// test input emulation
     #[arg(long)]
     test_emulation: bool,
-
-    /// capture backend override
-    #[arg(long)]
-    capture_backend: Option<CaptureBackend>,
-
-    /// emulation backend override
-    #[arg(long)]
-    emulation_backend: Option<EmulationBackend>,
 }
 
-#[derive(Clone, Copy, Debug, Deserialize, Eq, PartialEq, Serialize, ValueEnum)]
-pub enum CaptureBackend {
-    #[cfg(all(unix, feature = "libei", not(target_os = "macos")))]
-    InputCapturePortal,
-    #[cfg(all(unix, feature = "wayland", not(target_os = "macos")))]
-    LayerShell,
-    #[cfg(all(unix, feature = "x11", not(target_os = "macos")))]
-    X11,
-    #[cfg(windows)]
-    Windows,
-    #[cfg(target_os = "macos")]
-    MacOs,
-    Dummy,
-}
-
-#[derive(Debug, Clone, Copy, ValueEnum)]
-pub enum EmulationBackend {}
-
 #[derive(Debug, PartialEq, Eq)]
 pub enum Frontend {
     Gtk,
@@ -106,7 +78,6 @@ pub enum Frontend {
 
 #[derive(Debug)]
 pub struct Config {
-    pub capture_backend: Option<CaptureBackend>,
     pub frontend: Frontend,
     pub port: u16,
     pub clients: Vec<(TomlClient, Position)>,
@@ -192,11 +163,6 @@ impl Config {
             .and_then(|c| c.release_bind.clone())
             .unwrap_or(Vec::from_iter(DEFAULT_RELEASE_KEYS.iter().cloned()));
 
-        let capture_backend = match args.capture_backend {
-            Some(b) => Some(b),
-            None => config_toml.as_ref().and_then(|c| c.capture_backend),
-        };
-
         let mut clients: Vec<(TomlClient, Position)> = vec![];
 
         if let Some(config_toml) = config_toml {
@@ -219,7 +185,6 @@ impl Config {
         let test_emulation = args.test_emulation;
 
         Ok(Config {
-            capture_backend,
             daemon,
             frontend,
             clients,

src/main.rs

@@ -71,7 +71,7 @@ fn run_service(config: &Config) -> Result<()> {
         log::info!("Press Ctrl+Alt+Shift+Super to release the mouse");
 
         let server = Server::new(config);
-        server.run(config.capture_backend).await?;
+        server.run().await?;
 
         log::debug!("service exiting");
         anyhow::Ok(())

src/server.rs

@@ -8,7 +8,7 @@ use tokio::signal;
 
 use crate::{
     client::{ClientConfig, ClientHandle, ClientManager, ClientState},
-    config::{CaptureBackend, Config},
+    config::Config,
     dns,
     frontend::{FrontendListener, FrontendRequest},
     server::capture_task::CaptureEvent,
@@ -77,7 +77,7 @@ impl Server {
         }
     }
 
-    pub async fn run(&self, backend: Option<CaptureBackend>) -> anyhow::Result<()> {
+    pub async fn run(&self) -> anyhow::Result<()> {
         // create frontend communication adapter
         let frontend = match FrontendListener::new().await {
             Some(f) => f?,
@@ -97,12 +97,11 @@ impl Server {
 
         // input capture
         let (mut capture_task, capture_channel) = capture_task::new(
-            backend,
             self.clone(),
             sender_tx.clone(),
             timer_tx.clone(),
             self.release_bind.clone(),
-        )?;
+        );
 
         // input emulation
         let (mut emulation_task, emulate_channel) = emulation_task::new(

src/server/capture_task.rs

@@ -5,9 +5,8 @@ use std::{collections::HashSet, net::SocketAddr};
 use tokio::{process::Command, sync::mpsc::Sender, task::JoinHandle};
 
 use crate::{
-    capture::{self, error::CaptureCreationError, InputCapture},
+    capture::{self, InputCapture},
     client::{ClientEvent, ClientHandle},
-    config::CaptureBackend,
     event::{Event, KeyboardEvent},
     scancode,
     server::State,
@@ -26,15 +25,14 @@ pub enum CaptureEvent {
 }
 
 pub fn new(
-    backend: Option<CaptureBackend>,
     server: Server,
     sender_tx: Sender<(Event, SocketAddr)>,
     timer_tx: Sender<()>,
     release_bind: Vec<scancode::Linux>,
-) -> Result<(JoinHandle<Result<()>>, Sender<CaptureEvent>), CaptureCreationError> {
+) -> (JoinHandle<Result<()>>, Sender<CaptureEvent>) {
     let (tx, mut rx) = tokio::sync::mpsc::channel(32);
     let task = tokio::task::spawn_local(async move {
-        let mut capture = capture::create(backend).await?;
+        let mut capture = capture::create().await;
         let mut pressed_keys = HashSet::new();
         loop {
             tokio::select! {
@@ -64,7 +62,7 @@ pub fn new(
         }
         anyhow::Ok(())
     });
-    Ok((task, tx))
+    (task, tx)
 }
 
 fn update_pressed_keys(pressed_keys: &mut HashSet<scancode::Linux>, key: u32, state: u8) {