Fixes for inline css (CSSOM)

README.md

@@ -17,3 +17,37 @@ node src/cli.mjs archive ./page.html
 ```
 
 Archives are written to `ARCHIVE_PATH`, or to a development directory under the system temp directory when `ARCHIVE_PATH` is not set.
+
+## Ephemeral container worker
+
+The host-facing container boundary is `src/container-runner.mjs`. It starts a short-lived Docker/Podman worker container, mounts the host archive directory at `/archives`, sends one archive request, reads a JSON result, and exits.
+
+Build the worker image:
+
+```sh
+podman build -t local-page-archiver:latest .
+```
+
+Archive through the worker on macOS with Podman:
+
+```sh
+node src/container-runner.mjs archive "https://example.com/article" \
+  --runtime podman \
+  --image local-page-archiver:latest \
+  --archive-path ./archives
+```
+
+The convenience wrapper does the same thing and builds the image if missing:
+
+```sh
+./podman-run.sh archive "https://example.com/article"
+```
+
+For visual debugging, expose VNC from the worker:
+
+```sh
+./podman-run.sh vnc-archive "https://example.com/article"
+# Then open vnc://localhost:5901
+```
+
+The worker image starts Xvfb internally, so callers do not need to mount the host X11 socket or override the entrypoint.