{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };
  outputs = { self, nixpkgs, flake-utils, ... }:
  flake-utils.lib.eachDefaultSystem (system:
  (let pkgs = nixpkgs.legacyPackages.${system}; in
  {
    defaultPackage = builtins.filterSource
      (path: type: type != "directory" || baseNameOf path != ".git")
      ./.;
  }));
}