these 7 derivations will be built:
  /nix/store/npdjx3qml0q3fy1zg5nk4wdmyphn0wnl-tridactyl_vim-1.25.0.xpi.drv
  /nix/store/7rp41l867xnvy0snzfp5wvz9xygiqdcd-tridactyl-1.25.0.drv
  /nix/store/2fzs9lr4fhwjl25p7s8368a9dcgarq1z-hm-firefox-extensions.drv
  /nix/store/ksh1v6xwc7qbk5j6q8cajd4vpl1w8asx-hm-firefox-extensions.drv
  /nix/store/njc1mhfaghianhxd2765864wg1mzki82-hm-firefox-extensions.drv
  /nix/store/s71l4bwpjmsnvxm586ws4c0gh43i3zh2-home-manager-files.drv
  /nix/store/lg7z9j5cmnz53b39jf7l5hsiqbypijbb-home-manager-generation.drv