this derivation will be built:
  /nix/store/8qqwpdbqwq1100vjrk4bl4xnx30083si-spaces-voice-indicator-1.0.drv
this path will be fetched (12.9 KiB download, 103.3 KiB unpacked):
  /nix/store/yqkn96jp6krsnzn1dv5bmrxi1q5cbn45-libayatana-appindicator-0.5.92-dev