{ description = "A very basic flake"; inputs = { nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable"; # or nixpkgs/nixos-unstable }; outputs = { self, nixpkgs, ... }: let lib = nixpkgs.lib; in { nixosConfigurations = { nixpengames = lib.nixosSystem { system = "x86_64-linux"; modules = [ ../configuration.nix ]; }; }; # packages.x86_64-linux.hello = nixpkgs.legacyPackages.x86_64-linux.hello; # packages.x86_64-linux.default = self.packages.x86_64-linux.hello; }; }