CI workflow (ci.yml): - Proper YAML structure for all steps - curl+tar checkout (act runners lack git) - GITEATOKEN authentication for private repo access - build-essential/gcc added to all jobs - dpkg-buildpackage -d flag (skip apt dep check) Build scripts: - build-alpine.sh: Copy APKBUILD to /home/builduser before abuild - build-arch.sh: Use REPO_DIR variable instead of $(pwd) in su commands