I built and released Limen v0.1.0:

https://github.com/thecodearcher/limen

Writeup/docs: https://limenauth.dev/blog/introducing-limen

It’s inspired by better-auth’s plugin-first DX, but designed for idiomatic Go. The core handles sessions/cookies/security primitives, and auth methods are composed as plugins (credential auth, OAuth providers, and 2FA today).

It exposes an http.Handler, so it works with plain net/http and frameworks like Gin/Echo/Chi/Fiber without framework lock-in.

This is the first public release. I’d really appreciate feedback.