Show and Tell: Jet — A modular backend framework built on Hono

[khapu2906]

Hey Hono community! 👋

I've been building Jet, a modular TypeScript backend framework on top of Hono,
and wanted to share it here since Hono is at the core of it.

What is Jet?

Jet is an opinionated backend framework that combines Hono with a structured
module system, dependency injection, and built-in infrastructure — so you can
focus on business logic instead of wiring things up. try it

What's included

• Module system — feature-isolated modules with lifecycle hooks
  (register → onInit → bootstrap → onDestroy)
• Dependency injection — container-based DI with Symbol keys, child containers
  per module
• Authentication — JWT + RBAC out of the box, pluggable provider architecture
  (internal email/password today, extensible to OAuth)
• Event bus — swappable backends: in-memory for development,
  pg-boss for production (durable, retryable)
• Multi-process — same codebase runs as api (HTTP server) or worker
  (background job consumer) via PROCESS_TYPE env var
• Security — CORS, CSP, HSTS, rate limiting, security headers — all on by default
• Database — PostgreSQL + Drizzle ORM with migration support

Why Hono?

Hono's performance, small footprint, and first-class TypeScript support made it
the perfect foundation. The middleware and routing API is a joy to build on top of.

One thing I especially appreciated: Hono's validator and describeRoute
(via @hono/zod-openapi / hono-openapi) made it straightforward to generate
OpenAPI docs without any extra boilerplate.

Example: adding a new module

export class PostsModule extends Module {
  async register() {
    this.container.bind(PostsServiceKey).to(PostsService)
  }

  async bootstrap() {
    const app = new Hono()
    const service = this.container.get(PostsServiceKey)

    app.get("/posts", async (c) => {
      const posts = await service.list()
      return c.json(success(PostListDto, posts))
    })

    return app
  }
}

Status

Still in active development — auth, event bus, and core infrastructure are solid.
Working on more modules and documentation.

Would love any feedback, especially from folks who've built larger apps with Hono.
Happy to answer questions!