{ fetchFromGitHub }:
fetchFromGitHub {
  owner = "fenn-cs";
  repo = "tahoe-lafs";
  rev = "f6a96ae3976ee21ad0376f7b6a22fc3d12110dce";
  sha256 = "sha256:127z83c388mvxkz1qdjqdnlj5xgshyn5w5v40vda6mpyy7k9bpb4";
}