Self-host RomM

copy# RomM + MariaDB — upstream's example compose, trimmed; put your ROMs under ./library/roms/<platform>/
mkdir -p romm/library/roms romm/assets romm/config && cd romm
DB_PASS=$(openssl rand -hex 24)
cat > docker-compose.yml <<EOF
services:
  romm:
    image: rommapp/romm:latest
    restart: unless-stopped
    environment:
      DB_HOST: romm-db
      DB_NAME: romm
      DB_USER: romm-user
      DB_PASSWD: $DB_PASS
      ROMM_AUTH_SECRET_KEY: $(openssl rand -hex 32)
      HASHEOUS_API_ENABLED: "true"
    volumes: [romm_resources:/romm/resources, romm_redis_data:/redis-data, ./library:/romm/library, ./assets:/romm/assets, ./config:/romm/config]
    ports: ["80:8080"]
    depends_on: { romm-db: { condition: service_healthy } }
  romm-db:
    image: mariadb:latest
    restart: unless-stopped
    environment: { MARIADB_ROOT_PASSWORD: $(openssl rand -hex 24), MARIADB_DATABASE: romm, MARIADB_USER: romm-user, MARIADB_PASSWORD: $DB_PASS }
    volumes: [mysql_data:/var/lib/mysql]
    healthcheck: { test: ["CMD", "healthcheck.sh", "--connect", "--innodb_initialized"], start_period: 30s, interval: 10s, timeout: 5s, retries: 5 }
volumes: { mysql_data: {}, romm_resources: {}, romm_redis_data: {} }
EOF
docker compose up -d
# add IGDB/ScreenScraper/RetroAchievements keys to the env for richer metadata
# first visit runs a setup wizard that creates the admin user  →  http://SERVER_IP:80