{pkgs, ...}: (
  {
    name,
    pyenv,
  }: let
    interpreter = pyenv.interpreter; # TODO ensure ipykernel package installed somehow...
  in
    pkgs.writeTextFile {
      name = "${name}-ipykernel";
      destination = "/kernels/${name}/kernel.json";
      text = builtins.toJSON {
        display_name = name;
        argv = [
          "${interpreter}"
          "-m"
          "ipykernel_launcher"
          "-f"
          "{connection_file}"
        ];
        language = "python";
        metadata = {debugger = true;};
      };
    }
)