some.nix

  emacs = {
    buildOrg = {emacs ? emacs25-nox, init ? ./init.org}:
      runCommand "init.el"
        { buildInputs = [ emacs ]; }
        ''
          mkdir -p $out;
          ln -s "${init}" ./init.org;
          emacs -Q --script "${./assets/org-build.el}" -f make-init-el;
          cp init.el $out;
        '';
  }