these 3 derivations will be built:
  /nix/store/ksh4j8v20qnqb2c1rf4ypv5n10i2nz0x-home-manager-path.drv
  /nix/store/686d3yasz590pc6li6y97vhaw04wcraz-activation-script.drv
  /nix/store/k4d4xw5rcmmva87sgfz612gnhbn2rg76-home-manager-generation.drv