Recently, uBlue. It’s more a family of fedora atomic images but it has taken the pain out of immutability for me. I was using Fedora silver blue and later Sericea a while back, but installing codecs from RPMfusion on it never worked properly and my hw acceleration was always broken. I was on NixOS for a while but had sporadic problems that come with NixOS not using an FHS structure. But uBlue just works. Hardware acceleration works out of the box, and I can easily create custom images with BlueBuild. It’s a very nice ecosystem to create a stable, secure, complete base system. And I run nix on top of it for user packages and home-manager to get all the benefits of both worlds

Check out Wayblue, they make some custom universal blue images based off fedora silverblue which includes a hyprland image. I’m running a modified way blue image myself these days and loving it. Technically it’s a secureblue image based on a way blue image but yeah same difference

Was using NixOS but just could not deal with lack of FHS compatibility. Even the workarounds like nix-ld and nix-alien didn’t help with some key scripts I needed to run for secure network verification stuff. So I just migrated to this plus nix/home-manager for my application management

If it’s something that will be mostly interacted with over CLI then kebab case. If GUI then spaces

There is a fully Rust based Unix-like OS out there, it’s called Redox and it’s very cool

Have you tried yabai or amethyst? Both really solid macOS tilers

I’ve been into NixOS recently, not sure if I’m gonna stick with it long term but I’m trying to make it work. I love that it’s immutable while still allowing system packages, and declaratively configuring all of your common programs with home manager is super cool. Just have issues with scripts from the internet and trying to get nix-ld to cooperate