diff --git a/deploy/README.md b/deploy/README.md
index d59e7fa..8250187 100644
--- a/deploy/README.md
+++ b/deploy/README.md
@@ -68,6 +68,6 @@ Invalid references are rejected:
 The web app currently supports two overlay surfaces:
 
 - `workshop` overlays (user-owned) — populated by downloading `.vpk` files from the public Steam Web API into `${LEFT4ME_ROOT}/workshop_cache/{steam_id}.vpk` and creating absolute symlinks under `${LEFT4ME_ROOT}/overlays/{overlay_id}/left4dead2/addons/{steam_id}.vpk`.
-- Managed global overlays (`l4d2center_maps`, `cedapug_maps`, system-wide) — populated by the daily `left4me-refresh-global-overlays` job, which downloads archives into `${LEFT4ME_ROOT}/global_overlay_cache/` and symlinks them into the overlay directory.
+- `script` overlays — populated by an arbitrary user-authored bash script that runs inside `bubblewrap` + `systemd-run --scope` as the unprivileged `l4d2-sandbox` UID, with the overlay directory bind-mounted RW at `/overlay`. Resource caps: 1h walltime, 4 GB RAM, 512 tasks, 200% CPU, 20 GB post-build disk cap.
 
 Both the caches and the overlay directories are owned by the `left4me` runtime user; if the web service ever runs as a different uid, ensure it shares a group with the host process and that both trees are group-readable.