gistfile1.txt

self: super: {
  haskellPackages = with self.haskell.lib; super.haskellPackages.extend (selfHS: superHS: {
    generic-lens = dontCheck (selfHS.callHackage "generic-lens" "1.0.0.1" {});
    taffybar = with self.haskell.lib; enableDWARFDebugging (enableExecutableProfiling (overrideSrc superHS.taffybar {
      version = "master";
      src = self.fetchFromGitHub {
        owner = "taffybar";
        repo = "taffybar";
        rev = "6e6d3b4180e291f3555e796cfea95a24118f0426";
        sha256 = "1xxw8wmy0jdqs42g9vr3wjblgq6x5skdlyzwf25hihb4r3wiq2r3";
      };
    }));
  });
}