diff --git a/.gitea/workflows/sync-google-drive.yml b/.gitea/workflows/sync-google-drive.yml
new file mode 100644
index 0000000..886cc46
--- /dev/null
+++ b/.gitea/workflows/sync-google-drive.yml
@@ -0,0 +1,32 @@
+name: Sync changed files to Google Drive
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  sync:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Upload changed files
+        env:
+          BEFORE: ${{ gitea.event.before }}
+          AFTER: ${{ gitea.event.after }}
+          RCLONE_CONFIG_GDRIVE: ${{ secrets.RCLONE_CONFIG_GDRIVE }}
+        run: |
+          curl -fsSL https://rclone.org/install.sh | sudo bash
+          config=$(mktemp)
+          trap 'rm -f "$config"' EXIT
+          printf '%s' "$RCLONE_CONFIG_GDRIVE" > "$config"
+          if test "${BEFORE//0/}"; then
+            git diff --name-only --diff-filter=ACMRT -z "$BEFORE" "$AFTER"
+          else
+            git ls-files -z
+          fi | while IFS= read -r -d '' file; do
+            case "$file" in build|build/*) continue ;; esac
+            rclone copyto --config "$config" "$file" "gdrive:$file"
+          done