let
pkgs = import <nixpkgs> {};
overlay = pkgs.fetchFromGitHub {
owner = "mozilla";
repo = "nixpkgs-mozilla";
rev = "0510159186dd2ef46e5464484fbdf119393afa58";
sha256 = "sha256-HJX4Pc5ZUAg4apxB/XHuJ+6ukzvRQqeZMjscOBst2bA=";
};
in
import overlay