[avakand]

https://github.com/divnix/devos is something close to a framework.

I agree that language is too simple. Also I think some degree of IDE / language server support would help a lot. Refactoring modules, writing and importing custom functions was a bad experience for me - some arcane stacktraces were common, using repl was too verbose and with no clear way to debug whole configuration.

[emptysongglass]

I just got a spare mini-PC up on DevOS over the weekend! It's currently looking for maintainers but it's cutting edge (think hlissner's NixOS config but more generic) and gives you a huge amount of flexibility out of the box. Highly recommended if you want a Flake-based NixOS system, local or remote but don't know where to start or you'd like an example of best practices to build off of.