{
  description = "flake";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    nur.url = "github:nix-community/NUR";
    neovim-nightly.url = "github:nix-community/neovim-nightly-overlay";
  };

  outputs = {
      self,
      nixpkgs,
      home-manager,
      nur,
      neovim-nightly,
      ...
  }:
    let 
      system = "x86_64-linux";
      username = "sundo";
      settings = { inherit system username; };
      overlays = [
        neovim-nightly.overlays.default
        nur.overlays.default
      ];
    in {
      nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
        inherit system;
        modules = [
          (import ./configuration.nix settings)
          home-manager.nixosModules.home-manager
          {
            nixpkgs.overlays = overlays;
            home-manager.useGlobalPkgs = true;
            home-manager.useUserPackages = true;
            home-manager.users.${username}.imports = [
              (import ./home.nix settings) 
            ];
          }
        ];
      };
    };
}