{
  description = "NixOS build";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    plasma-manager = {
      url = "github:nix-community/plasma-manager";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.home-manager.follows = "home-manager";
    };
    nixvim = {
      url = "github:EsVagy42/nixvim";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs =
    { nixpkgs, home-manager, plasma-manager, nixvim, ... }@inputs:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs {
        inherit system;
        config.allowUnfree = false;
      };
      lib = nixpkgs.lib;
    in {
      nixosConfigurations = let
        baseSystem = { productiveBuild }:
          lib.nixosSystem {
            inherit system;
            modules = [
              {
                environment.systemPackages =
                  [ inputs.nixvim.packages.${system}.default ];
              }
              ({ lib, ... }: {
                options.productiveBuild = lib.mkOption {
                  type = lib.types.bool;
                  default = productiveBuild;
                };
              })
              ./configuration.nix
              ./devices/default/default.nix
              home-manager.nixosModules.home-manager
              {
                home-manager.useGlobalPkgs = true;
                home-manager.useUserPackages = true;
                home-manager.sharedModules =
                  [ plasma-manager.homeManagerModules.plasma-manager ];

                home-manager.users.esvagy = { imports = [ ./home.nix ]; };
              }
            ];
          };
      in {
        nixos = baseSystem { productiveBuild = false; };
        productive = baseSystem { productiveBuild = true; };
        alt = lib.nixosSystem {
          inherit system;
          modules = [
            ./configuration.nix
            ./devices/alt/alt.nix
            home-manager.nixosModules.home-manager
            {
              home-manager.useGlobalPkgs = true;
              home-manager.useUserPackages = true;
              home-manager.sharedModules =
                [ plasma-manager.homeManagerModules.plasma-manager ];

              home-manager.users.esvagy = { imports = [ ./home.nix ]; };
            }
          ];
        };
      };
    };
}