How to disable running tests when building home-manager module?

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I want to use a haskell package in a WSL instance but managed by home-manager. It is well-documented how to do this and works except when the build finally is running tests, which generally break on this setup due to

clock_getres: invalid argument (Invalid argument)

Regularly I have an overlay containing that but somehow it isn’t working on that special occasion. Can you tell me how to achieve the switching-off of tests here ?

# ~/.config/nixpkgs/home.nix
{
  imports = [
    ../program/smos
  ];
}

# ~/.config/nixpkgs/program/smos/default.nix
{ pkgs, lib, ... }:
with lib;
let
  smosModule = (builtins.fetchGit {
    url = "https://github.com/NorfairKing/smos";
    ref = "master";
    rev = "53e1f37a06f16f2b32452ba0cc736e3707eb268a"; # Add a recent version here.
  } + "/nix/program.nix");
in
{
  imports = [
    smosModule
    # [...]
  ];
  programs.smos = {
    enable = true;
    backup = {
      enable = true;
    };
    sync = {
      enable = false;
      username = "YOURUSERNAMEHERE";
      password = "YOURPASSWORDHERE";
    };
  };
}

# ~/.config/nixpkgs/overlays/haskell-no-check.nix
# https://stackoverflow.com/a/57854640
self: super: {
  haskell = super.haskell // {
    packageOverrides = hself: hsuper: {
      mkDerivation = args: hsuper.mkDerivation (args // {
        doCheck = false;
        doHaddock = false;
      });
    };
  };
}