{
  description = "Dobble / Spot It card generator - produces printable PDFs from images";

  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};
        python = pkgs.python3;
        pythonWithDeps = python.withPackages (ps: [
          ps.reportlab
          ps.pillow
        ]);
        dobble = pkgs.writeShellScriptBin "dobble" ''
          exec ${pythonWithDeps}/bin/python3 ${./dobble.py} "$@"
        '';
      in {
        packages = {
          dobble = dobble;
          default = dobble;
        };

        apps.default = {
          type = "app";
          program = "${dobble}/bin/dobble";
        };
      }
    );
}