Build an Authorization Server with Bun, Hono, and OpenID Connect

A tutorial shows how to build a self-hosted OpenID Connect authorization server from scratch using Bun and Hono.

It walks through OIDC Authorization Code Flow support, including discovery, JWKS, token exchange, user info, protected resources, and API docs.

The setup uses OAuth/OIDC libraries such as @saurbit/hono-oauth2 and @saurbit/oauth2-jwt for JWT signing and validation.

The guide highlights PKCE, key rotation, and an interactive Scalar UI for testing the auth flow end to end.