these 2 derivations will be built:
  /nix/store/mmfzg0fhyg2zlj5r0f0mn2qhlx57qwig-neovim-ruby-env.drv
  /nix/store/anrbg2zyvha9x2vpwb6anqv9m59kj5gz-neovim-0.12.6.drv