diff --git a/crates/punktfunk-host/src/capture/linux/mod.rs b/crates/punktfunk-host/src/capture/linux/mod.rs
index e4add236..d094ee74 100644
--- a/crates/punktfunk-host/src/capture/linux/mod.rs
+++ b/crates/punktfunk-host/src/capture/linux/mod.rs
@@ -1062,6 +1062,8 @@ mod pipewire {
         // requested). The resulting pointer is in bounds and aligned for `spa_meta_bitmap`.
         let bmp =
             unsafe { (cur as *const u8).add(bmp_off as usize) as *const spa::sys::spa_meta_bitmap };
+        // SAFETY: `bmp` is the in-bounds, aligned `spa_meta_bitmap` pointer computed just above; the
+        // producer fully initialized this header, so reading its scalar fields is sound.
         let (vfmt, bw, bh, stride, pix_off) = unsafe {
             (
                 (*bmp).format,
diff --git a/crates/punktfunk-host/src/linux/zerocopy/cuda.rs b/crates/punktfunk-host/src/linux/zerocopy/cuda.rs
index ea9eb467..0a24c58c 100644
--- a/crates/punktfunk-host/src/linux/zerocopy/cuda.rs
+++ b/crates/punktfunk-host/src/linux/zerocopy/cuda.rs
@@ -703,10 +703,10 @@ impl CursorBlend {
                 "cuModuleLoadData(cursor_blend)",
             )?;
         }
-        // SAFETY: `module` loaded above; each name is a valid NUL-terminated symbol present in the
-        // module (verified in the .ptx `.entry` list); `&mut f` is a live out-param.
         let getf = |name: &CStr| -> Result<CUfunction> {
             let mut f: CUfunction = std::ptr::null_mut();
+            // SAFETY: `module` loaded above; each name is a valid NUL-terminated symbol present in
+            // the module (verified in the .ptx `.entry` list); `&mut f` is a live out-param.
             unsafe {
                 ck(
                     cuModuleGetFunction(&mut f, module, name.as_ptr()),
@@ -759,6 +759,7 @@ impl CursorBlend {
     }
 
     /// Blend into a packed 4-byte (NVENC ARGB) owned surface at `(ox,oy)`.
+    #[allow(clippy::too_many_arguments)] // surface geometry + cursor size + offset — a struct would just be unpacked at the call
     pub fn blend_argb(
         &self,
         surf: CUdeviceptr,
@@ -789,6 +790,7 @@ impl CursorBlend {
     }
 
     /// Blend into an owned planar YUV444 surface (3 stacked full-res planes) at `(ox,oy)`.
+    #[allow(clippy::too_many_arguments)] // surface geometry + cursor size + offset — a struct would just be unpacked at the call
     pub fn blend_yuv444(
         &self,
         base: CUdeviceptr,
@@ -819,6 +821,7 @@ impl CursorBlend {
     }
 
     /// Blend into an owned NV12 surface (Y plane at `base`, interleaved UV at `base + pitch*h`).
+    #[allow(clippy::too_many_arguments)] // surface geometry + cursor size + offset — a struct would just be unpacked at the call
     pub fn blend_nv12(
         &self,
         base: CUdeviceptr,