{
  description = "Nest's Flake";

  inputs = {
    nixpkgs.url = "nixpkgs/nixos-unstable";

    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = { self, nixpkgs, ... }@inputs:
  let
    inherit (self) outputs;

    # Set the default user. Can be overitten on a system level
    vars.user = "nest";

    # List of system types our hosts use
    systems = [ "x86_64-linux" ];

    # Generic NixOS config
    mkNixOSConfig = {
      path,
      extraModules ? [],
    }:
      nixpkgs.lib.nixosSystem {
        specialArgs = {
          inherit inputs outputs vars;
	};

	modules = [
	  ./nixos/common
	  path
	]
	++ extraModules;
      };

    # Additional modules for physical hosts
    mkPhysicalNixOSConfig = path:
      mkNixOSConfig {
        path = path;
	extraModules = [ ./hosts/physical ];
      };

    # Additional modules for servers
    #  mkServerNixOSConfig = path: serverType:
    #    mkNixOSConfig {
    #      path = path;
    #      extraModules = [
    #        ./hosts/server
    #        ./nixos/roles/server/${serverType}
    #        ./nixos/modules/backup
    #      ];
    #    };
  in {
    # Format our nix files using alejandra
    formatter = nixpkgs.lib.genAttrs systems (system: nixpkgs.legacyPackages.${system}.alejandra);

    # Collection of all of our configs
    # =========== Desktops ===========
    crow = mkPhysicalNixOSConfig ./hosts/physical/crow;

    # nixosConfigurations.crow = nixpkgs.lib.nixosSystem {
    #   system = "x86_64-linux";
    #   modules = [
    #     ./configuration.nix

    #     home-manager.nixosModules.home-manager {
    #       home-manager = {
    #         useGlobalPkgs = true;
    #         useUserPackages = true;
    #         users.nest = import ./home.nix;
    #         backupFileExtension = "backup";
    #       };
    #     }
    #   ];
    # };
  };
}