{ fetchurl }:

fetchurl {
  url = "https://github.com/commercialhaskell/all-cabal-hashes/archive/3487551670de487866a34bd466b33b5146087882.tar.gz";
  sha256 = "10kag8qmlsnj3qwq0zxb6apd2z7jg17srvhsax5lgbwvlymbnckb";
}