I was previously waiting for River https://github.com/memorysafety/river/ to take off, it's built on top of previously open-sourced library by Cloudflare for revese-proxying, but just like many other "grant-based" projects it just died when funding stopped.

I really like the spirit and simplicity of Ferron, will try it out when I have a chance. Been waiting for gradually throw out nginx for a while now, nothing clicked all the checkboxes.