Override taffybar

{ nixpkgs ? import <nixpkgs> {}}:

with nixpkgs; let
haskell = pkgs.haskell.packages.ghc822.override {
  overrides = self: super: {
    self.haskell-gi-overloading = super.haskell-gi-overloading_0_0;
  };
};
ghcWithPackages = haskell.ghcWithPackages;
in
  pkgs.taffybar.override { inherit ghcWithPackages; }