I recently found Zot. It’s basically a younger Pi written in Golang and distributed as a single Go binary. The author is very fast with fixing bugs and it has grown to a state where I use it for most things now!

https://www.zot.sh/

Another one written in Go is Crush

Ugh. They need to change that name. There already is a project called Zot.

https://github.com/project-zot/zot.git