diff --git a/Cargo.lock b/Cargo.lock
index 7594ea442..11fd40c76 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -148,7 +148,6 @@ dependencies = [
  "all-is-cubes-render",
  "all-is-cubes-ui",
  "anyhow",
- "bytemuck",
  "cfg-if",
  "clap",
  "crossterm",
@@ -5819,7 +5818,6 @@ dependencies = [
  "all-is-cubes-render",
  "all-is-cubes-ui",
  "async_fn_traits",
- "bytemuck",
  "clap",
  "exhaust",
  "futures-core",
diff --git a/all-is-cubes-desktop/Cargo.toml b/all-is-cubes-desktop/Cargo.toml
index abdaf79ee..906834312 100644
--- a/all-is-cubes-desktop/Cargo.toml
+++ b/all-is-cubes-desktop/Cargo.toml
@@ -36,7 +36,6 @@ all-is-cubes-port = { workspace = true }
 all-is-cubes-render = { workspace = true, features = ["raytracer"] }
 all-is-cubes-ui = { workspace = true }
 anyhow = { workspace = true }
-bytemuck = { workspace = true }
 cfg-if = { workspace = true }
 clap = { workspace = true }
 # Note: keep crossterm in sync with ratatui's crossterm dependency.
diff --git a/all-is-cubes-desktop/src/record/write_png.rs b/all-is-cubes-desktop/src/record/write_png.rs
index e4ecb085c..8eed5cb01 100644
--- a/all-is-cubes-desktop/src/record/write_png.rs
+++ b/all-is-cubes-desktop/src/record/write_png.rs
@@ -23,9 +23,8 @@ pub(crate) fn threaded_write_frames(
         'frame_loop: loop {
             match image_data_receiver.recv() {
                 Ok((status, image)) => {
-                    png_writer.write_image_data(bytemuck::cast_slice::<[u8; 4], u8>(
-                        image.data.as_ref(),
-                    ))?;
+                    let image_data: &[[u8; 4]] = image.data.as_ref();
+                    png_writer.write_image_data(image_data.as_flattened())?;
                     status_notifier.notify(status);
                 }
                 Err(mpsc::RecvError) => {
diff --git a/all-is-cubes-gpu/src/in_wgpu/light_texture.rs b/all-is-cubes-gpu/src/in_wgpu/light_texture.rs
index 6c4960cbc..df45794bc 100644
--- a/all-is-cubes-gpu/src/in_wgpu/light_texture.rs
+++ b/all-is-cubes-gpu/src/in_wgpu/light_texture.rs
@@ -376,11 +376,7 @@ impl LightTexture {
             // To do this optimally, `StagingBelt` will need to be modified to allow
             // us accessing its buffers to issue a `copy_buffer_to_texture` instead of
             // it issuing a `copy_buffer_to_buffer`.
-            queue.write_buffer(
-                &self.copy_buffer,
-                0,
-                bytemuck::cast_slice::<Texel, u8>(&data[..batch_count]),
-            );
+            queue.write_buffer(&self.copy_buffer, 0, data[..batch_count].as_flattened());
 
             queue.submit([encoder.finish()]);
         }
diff --git a/test-renderers/Cargo.toml b/test-renderers/Cargo.toml
index b7bd25fe7..ff79137ba 100644
--- a/test-renderers/Cargo.toml
+++ b/test-renderers/Cargo.toml
@@ -68,7 +68,6 @@ all-is-cubes-port = { workspace = true, optional = true, features = [] }
 all-is-cubes-render = { workspace = true, features = ["raytracer", "std"] }
 all-is-cubes-ui = { workspace = true }
 async_fn_traits = { workspace = true }
-bytemuck = { workspace = true }
 # Using clap for parsing test command-line arguments
 clap = { workspace = true }
 exhaust = { workspace = true }
diff --git a/test-renderers/src/lib.rs b/test-renderers/src/lib.rs
index 5c3d82b7c..da10718ba 100644
--- a/test-renderers/src/lib.rs
+++ b/test-renderers/src/lib.rs
@@ -209,7 +209,7 @@ pub fn compare_rendered_image(
         let actual_to_save = image::ImageBuffer::<image::Rgba<u8>, _>::from_raw(
             actual_rendering.size.width,
             actual_rendering.size.height,
-            bytemuck::cast_slice::<[u8; 4], u8>(&actual_rendering.data),
+            actual_rendering.data.as_flattened(),
         )
         .unwrap();
 
@@ -254,7 +254,7 @@ pub fn compare_rendered_image(
         RgbaImage::from_raw(
             image.width() as u32,
             image.height() as u32,
-            bytemuck::cast_vec::<[u8; 4], u8>(image.buf().to_vec()),
+            image.buf().to_vec().into_flattened(),
         )
         .unwrap()
         .save(&diff_file_path)