{ nixpkgs-soundtouch, system, pkgs, nixpkgs, ... }: with pkgs;
let
  rawPerlPackages = callPackage "${nixpkgs}/pkgs/top-level/perl-packages.nix" {
    overrides = pkgs: { };
    buildPerl = perl;
  };
  hydra = callPackage "${nixpkgs}/pkgs/development/tools/misc/hydra/common.nix" {
    version = "2021-08-11";
    src = fetchFromGitHub {
      owner = "NixOS";
      repo = "hydra";
      rev = "9bce425c3304173548d8e822029644bb51d35263";
      sha256 = "sha256-tGzwKNW/odtAYcazWA9bPVSmVXMGKfXsqCA1UYaaxmU=";
    };
    nix = (import nixpkgs-soundtouch { inherit system; }).nixVersions.unstable;
    tests = {
      basic = nixosTests.hydra.hydra-unstable;
    };
  };
  plover = with python3Packages; libsForQt5.mkDerivationWith buildPythonPackage rec {
    pname = "plover-wayland";
    version = " 2022-01-14";
    src = fetchFromGitHub {
      owner = "matteodelabre";
      repo = "plover";
      rev = "fd5668a3ad9bd091289dd2e5e8e2c1dec063d51f";
      sha256 = "0y3mdfqjv3vmv5c0cpvfa2mqdylan44iw1js480sxvklq8sxq6yv";
    };
    postPatch = "sed -i /PyQt5/d setup.cfg";
    checkInputs = [ pytest mock ];
    propagatedBuildInputs = [ Babel pyqt5 xlib pyserial appdirs wcwidth setuptools ];
    dontWrapQtApps = true;
    preFixup = ''
      makeWrapperArgs+=("''${qtWrapperArgs[@]}")
    '';
  };
in
{
  nixpkgs.overlays = [
    (self: prev: {
      coreutils = prev.coreutils.overrideAttrs (old: {
        checkPhase = "true";
      });
      soundtouch = nixpkgs-soundtouch.legacyPackages.${system}.soundtouch;
      hydra-unstable = hydra.overrideAttrs (old: {
        patches = [
          ../../extra/hydra.patch
        ];
      });
      plover.dev = plover;
    })
  ];
}