diff --git a/hostcontrol/src/main.rs b/hostcontrol/src/main.rs
index ce9d0c1..7d525f5 100644
--- a/hostcontrol/src/main.rs
+++ b/hostcontrol/src/main.rs
@@ -1,5 +1,5 @@
-use std::{thread::sleep, time::Duration};
 use clap::Parser;
+use std::{thread::sleep, time::Duration};
 
 mod stage;
 
@@ -7,11 +7,11 @@ mod stage;
 #[command(version, about, long_about = None)]
 struct CliArgs {
     /// Interface to talk to movement stage
-    #[arg(long, default_value="/dev/ttyACM0")]
+    #[arg(long, default_value = "/dev/ttyACM0")]
     stage_device: String,
 
     /// Speed of the stage device (bps)
-    #[arg(long, default_value="115200")]
+    #[arg(long, default_value = "115200")]
     tty_speed: u32,
 }
 
@@ -43,8 +43,7 @@ fn main() {
     //Ok(())
 }
 
-struct App {
-}
+struct App {}
 
 impl Default for App {
     fn default() -> Self {
diff --git a/hostcontrol/src/stage.rs b/hostcontrol/src/stage.rs
index 3d9fefb..8a4901b 100644
--- a/hostcontrol/src/stage.rs
+++ b/hostcontrol/src/stage.rs
@@ -1,8 +1,8 @@
 //! Stage controller for openflexure-delta like stage controllers.
 
+use log::debug;
 use std::time::Duration;
 use thiserror::Error;
-use log::debug;
 
 fn new_camera_rotation(theta: f64) -> nalgebra::Matrix3<f64> {
     nalgebra::matrix![
@@ -15,7 +15,7 @@ fn new_camera_rotation(theta: f64) -> nalgebra::Matrix3<f64> {
 fn new_delta_into_cartesian(flex_h: f64, flex_a: f64, flex_b: f64) -> nalgebra::Matrix3<f64> {
     let x_fac = (2.0 / 3.0f64.sqrt()) * (flex_b / flex_h);
     let y_fac = -1.0 * flex_b / flex_h;
-    let z_fac = 1.0/3.0 * flex_b / flex_a;
+    let z_fac = 1.0 / 3.0 * flex_b / flex_a;
     nalgebra::matrix![
         -x_fac, x_fac, 0.0;
         0.5 * y_fac, 0.5 * y_fac, -y_fac;
@@ -55,17 +55,21 @@ pub struct Stage {
 pub type StageIOResult<T> = std::result::Result<T, StageIOError>;
 impl StageIO {
     pub fn new(port: &str, speed: u32) -> StageIOResult<Self> {
-	let serial = serialport::new(port, speed).timeout(Duration::from_secs(60)).open()?;
-	// TODO: read and discard initial characters; some devices like to be
-	// chatty on start-up.
-	Ok(Self { serial })
+        let serial = serialport::new(port, speed)
+            .timeout(Duration::from_secs(60))
+            .open()?;
+        // TODO: read and discard initial characters; some devices like to be
+        // chatty on start-up.
+        Ok(Self { serial })
     }
 
     fn receive_until<S: AsRef<str>>(&mut self, needle: S) -> StageIOResult<String> {
         let mut res: Vec<u8> = vec![];
         loop {
             let mut buf = [0u8; 1];
-            self.serial.read_exact(&mut buf).map_err(|e| StageIOError::Read(e))?;
+            self.serial
+                .read_exact(&mut buf)
+                .map_err(|e| StageIOError::Read(e))?;
             res.push(buf[0]);
             if res.ends_with(needle.as_ref().as_bytes()) {
                 return Ok(String::from_utf8_lossy(&res).to_string());
@@ -75,10 +79,12 @@ impl StageIO {
 
     // Send request and wait for response deliminated with a newline
     pub fn send_request<S: AsRef<str>>(&mut self, command: S) -> StageIOResult<String> {
-	debug!("->: {:?}", command.as_ref());
-        self.serial.write_all(command.as_ref().as_bytes()).map_err(|e| StageIOError::Write(e))?;
+        debug!("->: {:?}", command.as_ref());
+        self.serial
+            .write_all(command.as_ref().as_bytes())
+            .map_err(|e| StageIOError::Write(e))?;
         let response = self.receive_until("\n")?;
-	debug!("<-: {:?}", response);
+        debug!("<-: {:?}", response);
         Ok(response.trim().to_string())
     }
 }
@@ -87,28 +93,46 @@ pub type Result<T> = std::result::Result<T, StageError>;
 impl Stage {
     pub fn new(stage_io: StageIO, camera_rotation: f64) -> Result<Self> {
         // TODO: non-blocking moves
-        let delta_to_cartesian = new_camera_rotation(camera_rotation).try_inverse().unwrap() * new_delta_into_cartesian(80.0, 50.0, 50.0);
+        let delta_to_cartesian = new_camera_rotation(camera_rotation).try_inverse().unwrap()
+            * new_delta_into_cartesian(80.0, 50.0, 50.0);
         let cartesian_to_delta = delta_to_cartesian.try_inverse().unwrap();
-        let mut res = Self { stage_io, delta_pos: nalgebra::vector![0, 0, 0], cartesian_to_delta, delta_to_cartesian };
+        let mut res = Self {
+            stage_io,
+            delta_pos: nalgebra::vector![0, 0, 0],
+            cartesian_to_delta,
+            delta_to_cartesian,
+        };
 
-        let pos = res.stage_io.send_request("p?")?.split(" ").map(|v| v.parse::<i32>().map_err(|_| StageError::Mumble)).collect::<std::result::Result<Vec<_>, _>>()?;
+        let pos = res
+            .stage_io
+            .send_request("p?")?
+            .split(" ")
+            .map(|v| v.parse::<i32>().map_err(|_| StageError::Mumble))
+            .collect::<std::result::Result<Vec<_>, _>>()?;
         res.delta_pos = nalgebra::vector![pos[0], pos[1], pos[2]];
-        println!("Initialized stage at delta positions {}/{}/{}", pos[0], pos[1], pos[2]);
+        println!(
+            "Initialized stage at delta positions {}/{}/{}",
+            pos[0], pos[1], pos[2]
+        );
         Ok(res)
     }
 
-
     pub fn get_position_delta(&self) -> nalgebra::Vector3<i32> {
         self.delta_pos.clone()
     }
 
     pub fn get_position_cartesian(&self) -> nalgebra::Vector3<f64> {
-        let pos = nalgebra::vector![self.delta_pos[0] as f64, self.delta_pos[1] as f64, self.delta_pos[2] as f64];
+        let pos = nalgebra::vector![
+            self.delta_pos[0] as f64,
+            self.delta_pos[1] as f64,
+            self.delta_pos[2] as f64
+        ];
         self.delta_to_cartesian * pos
     }
 
     pub fn move_relative_delta(&mut self, d: nalgebra::Vector3<i32>) -> Result<()> {
-        self.stage_io.send_request(format!("mr {} {} {}\n", d[0], d[1], d[2]))?;
+        self.stage_io
+            .send_request(format!("mr {} {} {}\n", d[0], d[1], d[2]))?;
         self.delta_pos += nalgebra::vector![d[0], d[1], d[2]];
         Ok(())
     }