these 3 derivations will be built:
  /nix/store/ibn9vrcrbf8c90s6bn5jb2qrhcgzw2aw-home-manager-path.drv
  /nix/store/blcivm25wy1cjfqn3qrikzfh4a8garvv-activation-script.drv
  /nix/store/fnzfbw5gzm71ds972lmvm6fvx3lrdx3k-home-manager-generation.drv