--- a/src/state.rs
+++ b/src/state.rs
@@ -15,7 +15,6 @@
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 use std::fs::File;
-use std::sync::{Arc, Mutex};
 
 use input_linux::{AbsoluteAxis, Key, MiscKind, SynchronizeKind, UInputHandle};
 use crate::{DEFAULT_WIDTH, DEFAULT_HEIGHT, MAX_X, MAX_Y};
@@ -30,7 +29,7 @@ pub struct State {
 }
 
 impl State {
-    pub fn new() -> std::io::Result<Arc<Mutex<State>>> {
+    pub fn new() -> std::io::Result<State> {
         let dev = create_uinput_device()?;
         println!(
             "New device at {:?} ({:?})",
@@ -38,13 +37,13 @@ impl State {
             dev.sys_path()?
         );
 
-        Ok(Arc::new(Mutex::new(State {
+        Ok(State {
             dev,
             width: DEFAULT_WIDTH as f64,
             height: DEFAULT_HEIGHT as f64,
             selected_tool: Key::ButtonToolPen,
             pressed: false,
-        })))
+        })
     }
 
     pub fn set_size(&mut self, (width, height): (u32, u32)) {