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

    hardware.url = "github:NixOS/nixos-hardware/master";

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

    wired = {
      url = "github:Toqozz/wired-notify";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    dedsec-grub-theme = {
      url = "gitlab:VandalByte/dedsec-grub-theme";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    # nix lsp
    nil = {
      url = "github:oxalica/nil";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    # my neovim configuration
    myneovim = {
      url = "git+https://git.pleshevski.ru/mynix/neovim?rev=b22dfff883978841719da99d2abbfe7afaa91e4b";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    # tool to change .env faster
    vnetod = {
      url = "git+https://git.pleshevski.ru/pleshevskiy/vnetod";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs = inputs @ { self, nixpkgs, hardware, ... }:
    let
      system = "x86_64-linux";
    in
    {
      nixosConfigurations =
        nixpkgs.lib.mapAttrs
          (hostname: { system
                     , specialArgs ? { }
                     , extraModules ? [ ]
                     , nixpkgs ? inputs.nixpkgs
                     }:
            nixpkgs.lib.nixosSystem {
              inherit system;

              specialArgs = { inherit inputs; } // specialArgs;

              modules =
                (with inputs; [ home-manager.nixosModule ])
                ++ [ ./machines/${hostname} ]
                ++ extraModules;
            })
          (import ./machines inputs);

      devShells.${system} =
        let
          pkgs = import nixpkgs { inherit system; };
        in
        {
          default = pkgs.mkShell {
            packages = with pkgs; [
              stylua # lua formatter
              ormolu # haskell formatter
            ];
          };
        };
    };
}