{ lib, nimPackages, fetchFromGitea, fetchFromGitHub }:
with nimPackages;

let
  compiler = fetchFromGitHub {
    owner = "nim-lang";
    repo = "nim";
    rev = "v1.6.0";
    hash = "sha256-C9oveXIufv0HqMQw6eNmLbku4Sd7r28PKcRILvKYzn0=";
  };

  npeg = fetchFromGitHub {
    owner = "zevv";
    repo = "npeg";
    rev = "0.25.0";
    hash = "sha256-E/0hCz0XsoAb/bAksqrKTyi8/FwBdP8kT6uUUAdru68=";
  };

in buildNimPackage rec {
  outputs = [ "out" "dev" ];

  pname = "preserves";
  version = "3.0.0";
  src = fetchFromGitea {
    domain = "git.syndicate-lang.org";
    owner = "ehmry";
    repo = "preserves-nim";
    rev = "v${version}";
    sha256 = "sha256-YcWJkDJIo1UcXyqQTv82ebDeT03f5LqnuIKVtkvBClA=";
  };
  buildInputs = [ compiler npeg ];
  postInstall = ''
    pushd $out/bin
    for link in preserves_decode preserves_from_json preserves_to_json;
    do ln -s  preserves_encode $link
    done
    popd
  '';
  doCheck = true;
}