{ inputs
, pkgs
, lib
, ...
}:

{
  imports = [
    ./disk-configuration.nix
    ./hardware-configuration.nix
    ./impermanence-configuration.nix

    ./configuration
  ];

  nixpkgs = {
    overlays = [ ];
    
    config = {
      allowUnfree = true;
    };
  };

  nix = let
    flakeInputs = lib.filterAttrs (_: lib.isType "flake") inputs;
  in {
    settings = {
      # Enable flakes and new 'nix' command
      experimental-features = "nix-command flakes";

      # Disable global registry
      flake-registry = "";

      trusted-users = ["root" "@wheel"];
    };

    # Disable channels in favor of flakes
    channel.enable = false;

    # Make flake registry and nix path match flake inputs
    registry = lib.mapAttrs (_: flake: {inherit flake;}) flakeInputs;
    nixPath = lib.mapAttrsToList (n: _: "${n}=flake:${n}") flakeInputs;
  };

  # Relevant core programs
  environment.systemPackages = with pkgs; [
    home-manager
    nix
  ];

  # !!! DO NOT TOUCH !!!
  system.stateVersion = "26.05";
}