Github Repo

Futonic is a TypeScript framework for building embeddable services that crash on a host application’s futon.

The framework allows you to build self-contained backends that mount directly into a host application instead of deploying alongside it. Most apps just don’t have enough traffic to warrant a fleet of containers for auth, payments, or observability; those concerns can share the host’s compute and database instead of paying for their own. Futonic makes this paradigm the default.

Each service is a vertical slice with its own API endpoints, business logic, and database tables published as an npm package and mounted into the host. Everything runs in one process, one database, and one deployment, so backend-to-backend calls are direct function calls with zero serialization, and tables are automatically prefixed to stay isolated. It’s database-agnostic (Postgres, MySQL, or SQLite via auto-detection), works with frameworks like Hono and Next.js, ships type-safe RPC clients for the frontend, and generates ORM-specific migrations through its CLI.