---
aliases:
  - "0014"
  - RomM Guest
date-created: 2026-10-19 19:40
date-modified: 2026-10-19 19:40
status: open
area: "[[homelab]]"
blocked-by: []
subtasks: []
---

# RomM Guest

Deploy a dedicated RomM guest on Pikachu with Nixpkgs RomM 5.2.0.

Follow the standard guest-provisioning protocol.
Keep the old installation's public domain.

Use the local PostgreSQL and Redis instances from `services.romm`.
Set guest limits to `4G` memory, `200%` CPU, and `512` tasks.
Enable the library watcher.
Use RomM built-in accounts.

Mount persistent application data:

```text
/pikachu/data/romm             -> /var/lib/romm
/pikachu/data/romm/postgresql  -> /var/lib/postgresql
/pikachu/data/romm/redis       -> /var/lib/redis-romm
```

Mount browsable media:

```text
/pikachu/media/games/emulation/roms  -> /var/lib/romm/library/roms
/pikachu/media/games/emulation/bios  -> /var/lib/romm/library/bios
/pikachu/media/games/emulation/users -> /var/lib/romm/assets/users
```

Configure IGDB, ScreenScraper, and SteamGridDB from secrets.
Use RomM's default metadata, artwork, region, and language priorities.