diff --git a/.github/workflows/catalog.yml b/.github/workflows/catalog.yml
new file mode 100644
index 0000000..a9ce8da
--- /dev/null
+++ b/.github/workflows/catalog.yml
@@ -0,0 +1,18 @@
+on: push
+permissions:
+  contents: write
+jobs:
+  c:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - run: >
+          printf '['>catalog.json;c=;
+          for f in *;do [ -f "$f" ]||continue;[ "${f:0:1}" = . ]&&continue;
+          printf '%s{"name":"%s","raw":"https://raw.githubusercontent.com/%s/%s/%s","content":"' "$c" "$f" "$GITHUB_REPOSITORY" "$GITHUB_REF_NAME" "$f">>catalog.json;
+          base64 -w0 "$f">>catalog.json;printf '"}'>>catalog.json;c=,;done;printf ']'
+          >>catalog.json;
+          git diff --quiet -- catalog.json||(
+          git add catalog.json;
+          git -c user.name=bot -c user.email=bot@users.noreply.github.com commit -m update;
+          git push )