{
  description = "NixOS config with modules, host overrides, and Home Manager";

  inputs = {
    nixpkgs.url = "nixpkgs/nixos-25.05";
    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable";
    home-manager.url = "github:nix-community/home-manager/release-25.05";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";
    nix-alien.url = "github:thiagokokada/nix-alien";
  };

  outputs = { self, nixpkgs, home-manager, nix-alien, ... }: {
    nixosConfigurations = {
      dev-vm = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = {
          inherit home-manager;
        };
        modules = [
          ./common.nix
          ./hosts/dev-vm/default.nix
        ];
      };
      alex-laptop = nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = {
          inherit home-manager;
        };
        modules = [
          ./system/common.nix
          ./hosts/alex-laptop/default.nix
        ];
      };
      alex-desktop= nixpkgs.lib.nixosSystem {
        system = "x86_64-linux";
        specialArgs = {
          inherit home-manager;
	  inherit (self.inputs) nix-alien;
        };
        modules = [
          ./system/common.nix
          ./hosts/alex-desktop/default.nix
        ];
      };
    };
  };
}
