Initial setup

nixos-generate-config

TODO:

• Multiple user profiles, headless, nixpkgs-dev, desktop, hpc, pvv, etc
• Split stuff into multiple files
• Some system for multiple hosts with different configs
• Make a flake

How to evaluate, checking if the drv hash is equal

nix-instantiate '<nixpkgs/nixos>' -A system -I nixos-config=./configuration.nix