diff --git a/hostcontrol/src/camera.rs b/hostcontrol/src/camera.rs
index ceaa38e..6d1d480 100644
--- a/hostcontrol/src/camera.rs
+++ b/hostcontrol/src/camera.rs
@@ -1,32 +1,31 @@
 use anyhow::{Context, Result};
 use image::RgbImage;
-use nokhwa::Camera as NokhwaCamera;
 use nokhwa::pixel_format::RgbFormat;
 use nokhwa::utils::{CameraIndex, RequestedFormat, RequestedFormatType};
+use nokhwa::Camera as NokhwaCamera;
 
 pub struct Camera {
     camera: NokhwaCamera,
 }
-impl Camera  {
+impl Camera {
     pub fn new(camera_index: u32) -> Result<Self> {
-	let index = CameraIndex::Index(camera_index);
+        let index = CameraIndex::Index(camera_index);
         let format =
             RequestedFormat::new::<RgbFormat>(RequestedFormatType::AbsoluteHighestResolution);
-        let mut camera = NokhwaCamera::new(index, format).context("could not find/access webcam")?;
+        let mut camera =
+            NokhwaCamera::new(index, format).context("could not find/access webcam")?;
         camera.open_stream().context("failed to open stream")?;
 
-	Ok(Self {
-	    camera,
-	})
+        Ok(Self { camera })
     }
 
     pub fn capture(&mut self) -> Result<RgbImage> {
-	for _ in 0..5 {
-	    // Hack to have camera flush frames in buffer.
-	    let _ = self.camera.frame();
+        for _ in 0..5 {
+            // Hack to have camera flush frames in buffer.
+            let _ = self.camera.frame();
         }
         let frame = self.camera.frame().context("Could not capture image")?;
-	println!("snap!");
+        println!("snap!");
         Ok(frame.decode_image::<RgbFormat>()?)
     }
 }
diff --git a/hostcontrol/src/main.rs b/hostcontrol/src/main.rs
index c418eab..bdccb94 100644
--- a/hostcontrol/src/main.rs
+++ b/hostcontrol/src/main.rs
@@ -1,15 +1,15 @@
 use clap::{Parser, ValueEnum};
-use std::path::PathBuf;
 use image::RgbImage;
+use std::path::PathBuf;
 
+mod camera;
 mod gcode_stage;
 mod openflexure_stage;
-mod camera;
 
 mod stage_io;
+use crate::camera::Camera;
 use crate::stage_io::StageIO;
 use crate::xy_stage::XYStage;
-use crate::camera::Camera;
 
 mod xy_stage;
 
@@ -33,7 +33,7 @@ struct CliArgs {
     camera_index: u32,
 
     /// Directory all captured images are stored.
-    #[arg(long, value_name="out-dir")]
+    #[arg(long, value_name = "out-dir")]
     output_directory: PathBuf,
 }
 
@@ -47,10 +47,8 @@ enum Backend {
     GCode,
 }
 
-fn store_image(number: u32, pos: nalgebra::Vector3<f64>, dir: &PathBuf,
-	       img: &RgbImage) {
-    let img_file =
-        &dir.join(format!("img-{:05}-{:0},{:0}.png", number, pos[0], pos[1]));
+fn store_image(number: u32, pos: nalgebra::Vector3<f64>, dir: &PathBuf, img: &RgbImage) {
+    let img_file = &dir.join(format!("img-{:05}-{:0},{:0}.png", number, pos[0], pos[1]));
 
     img.save(img_file).unwrap();
 }
@@ -60,14 +58,14 @@ fn main() {
     let args = CliArgs::parse();
 
     if !args.output_directory.is_dir() {
-	panic!("--out-dir needs to be an existing directory");
+        panic!("--out-dir needs to be an existing directory");
     }
 
     let origin = nalgebra::vector![0.0, 0.0, 0.0];
 
     // Picture source
     let mut cam = Camera::new(args.camera_index).unwrap();
-    cam.capture().unwrap();  // Warm up camera.
+    cam.capture().unwrap(); // Warm up camera.
 
     // Movement
     let stage_io = StageIO::new(&args.stage_device, args.tty_speed).unwrap();
@@ -85,8 +83,10 @@ fn main() {
     max_xy[2] = 0.0;
 
     for n in 0..10 {
-	stage.move_absolute_cartesian(max_xy * n as f64 / 10.0).unwrap();
-	store_image(n, origin, &args.output_directory, &cam.capture().unwrap());
+        stage
+            .move_absolute_cartesian(max_xy * n as f64 / 10.0)
+            .unwrap();
+        store_image(n, origin, &args.output_directory, &cam.capture().unwrap());
     }
 }