these 3 derivations will be built:
  /nix/store/dj100jxkfim9rhzhz04mks7y0l8cxmpy-home-manager-path.drv
  /nix/store/3gqmxg1ncg44pbckcpq1542qs8711y2y-activation-script.drv
  /nix/store/fvfv3n3alf0hq7xj8nzfhv8ryd11k4lx-home-manager-generation.drv