these 4 derivations will be built:
  /nix/store/z8rbn3v4pf694n25nnd6zyfb08x072af-system-units.drv
  /nix/store/376xrrjzgzfwfykvvgs6rfymryv9b38z-etc.drv
  /nix/store/rmm9gdjarakhhmf02wlwi14riz9fra29-activate.drv
  /nix/store/49wy8ddikmhfabmni808164kq2cpgn3c-nixos-system-marvin-26.11.19800101.f165e44.drv