let pkgs = import ../../../../.. { }; src = pkgs.fetchgit { url = "https://github.com/nix-community/emacs2nix.git"; fetchSubmodules = true; rev = "703b144eeb490e87133c777f82e198b4e515c312"; sha256 = "sha256-YBbRh/Cb8u9+Pn6/Bc0atI6knKVjr8jiTGgFkD2FNGI="; }; in pkgs.mkShell { packages = [ pkgs.bash ]; EMACS2NIX = src; shellHook = '' export PATH=$PATH:${src} ''; }