Replace the pipeline template with a marker: the config is served by the update server

example-woodpecker.yaml

@@ -1,31 +1,5 @@
-steps:
-  - name: version
-    image: alpine
-    commands:
-      - 'apk add --no-cache make'
-      - 'make ci-version'
-
-  - name: build
-    image: git.teletypegames.org/internal/c64-builder:latest
-    commands:
-      - 'make ci-build'
-
-  - name: artifact
-    image: alpine
-    environment:
-      UPDATE_SERVER: https://teletypegames.org
-      UPDATE_SECRET:
-        from_secret: update_secret_key
-    commands:
-      - 'apk add --no-cache make curl'
-      - 'make ci-artifact'
-
-  - name: publish
-    image: alpine
-    environment:
-      UPDATE_SERVER: https://teletypegames.org
-      UPDATE_SECRET:
-        from_secret: update_secret_key
-    commands:
-      - 'apk add --no-cache make curl'
-      - 'make ci-publish'
+# One-line marker: the full pipeline is served by the update server's
+# Woodpecker configuration extension. Preview it with:
+#   curl "https://teletypegames.org/build/config?platform=c64"
+platform: c64
+# name: mygame   # only when the software name differs from the repo name