Spins up PostgreSQL, Redis, MySQL, or MongoDB instances with volumes, networking, and connection strings already wired. Saves you from writing docker-compose boilerplate or hunting down correct mount paths and environment variables. The databases come pre-configured, so you can connect immediately instead of debugging why your container can't persist data or resolve hostnames. Good for prototyping, side projects, or teams that want a standard database setup without maintaining their own templates. Not a managed database service, just a faster way to get a working local or development database without the usual setup friction.
npx skills add https://github.com/railwayapp/railway-skills --skill database