these 3 derivations will be built:
  /nix/store/x4f8rxfqv8235k2a75vw86cdhm1hgsm6-home-manager-path.drv
  /nix/store/b7x84ppifm6j9b17dxmbimhqy3zg5nmk-activation-script.drv
  /nix/store/17k8ajjp9iprgnpjgy2f7l7y2953ayqv-home-manager-generation.drv