diff --git a/.gitea/workflows/docker.yml b/.gitea/workflows/docker.yml
index e43e14b..3a80c24 100644
--- a/.gitea/workflows/docker.yml
+++ b/.gitea/workflows/docker.yml
@@ -47,7 +47,9 @@ jobs:
         with:
           context: .
           push: true
-          platforms: linux/amd64
+          # Target: Raspberry Pi 5 (arm64). Runner is arm64 too, so this is native + fast.
+          # amd64 is buildable locally via `docker build` on dev machines.
+          platforms: linux/arm64
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha