self: super:

super.input-fonts.overrideAttrs (old: rec {
  src = self.fetchzip {
    url = "http://xu.r/~tv/mirrors/input-fonts/Input-Font-2.zip";
    sha256 = "1q58x92nm7dk9ylp09pvgj74nxkywvqny3xmfighnsl30dv42fcr";
    stripRoot = false;
  };
  sourceRoot = null;
  outputHash = null;
  outputHashAlgo = null;
  outputHashMode = null;
})