Not yet. There are currently two very different versions of the Nest, of which the most recent one was supposed to become open source and self-hostable, but it never worked out. I’m working on merging their features. My main goal is that I want private repos for myself and a few friends.
As far as self-hosting is concerned, the entire Pijul project is currently unfunded, so I wouldn’t mind people self-hosting, as long as the public Nest pays its server bills and our engineering time, which is not currently the case.
But as soon as this works out, sure! I’m looking forward to it. If you know any way to help us get funded faster, please let me know.