Excited to try. I ran a reprepo for a couple of years & it wasn't the worst to run, but not fun either. My confidence in efficiently publishing packages was super low, never improved much.
It also mandated running a web server (configuring my nginx to point at the repo filesystem), not very batteries included.
We're also working on a hosted service! If you'd like a sneak peek, send us a message at founders@attunehq.com (or email me directly at eliza@attunehq.com). I'm happy to talk about your specific needs and see if we can build something for them.
(And yes, it is Rust. I keep trying to find projects where I get to stretch my Haskell wings again, but unfortunately I keep working on things with silly requirements such as "easily understandable performance" and "a cross-compilation story" and "not making my collaborators sit through another monad tutorial".)
It would be a fun thing to do if we had the resources to get equally good cross-compilation in Rust, but we're focused on building functionality right now.
Edit: the CLI part is Golang and the rest(?) is Rust.