these 3 derivations will be built:
  /nix/store/qmaqaz57kgb9mh1f30lxyk94hyil03xx-home-manager-path.drv
  /nix/store/bal3yjcmwfdwnqlipc0lkgbi8shw6l8m-activation-script.drv
  /nix/store/1ph2p044s0drdskmrhpjbdxsm84pq86s-home-manager-generation.drv