feat: reduce root flake.nix to just a devshell

feat: nix-diff in devshell

chore: update flake inputs, don't touch nvim-flake nixpkgs

feat: hy3

feat: LXC docs, base LXC, use NixOS LXC module

feat: make zellij usable

feat: add tamma to devshell, init config

fix(flake): alejandra don't run always

feat: pre commit hooks

feat(modules/unfree): unfree core module

feat: initial version