these 3 derivations will be built:
  /nix/store/34zw69djhzzncx225lwmd6n7ncr6xcwv-home-manager-files.drv
  /nix/store/wbp70snfasygm7236cx5mvagsckf9vlq-hm-putter.json.drv
  /nix/store/8d872dml93cyjyqxphlhvgsfdfycg543-home-manager-generation.drv