this derivation will be built:
  /nix/store/h4bc1525dgsy80gsd6ydpb0bf6qlr8k9-flake-inputs.drv
building '/nix/store/h4bc1525dgsy80gsd6ydpb0bf6qlr8k9-flake-inputs.drv'

post-build step Upload to niks3: ok
time=2026-08-29T12:33:11.019Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (7 already cached)"
time=2026-08-29T12:33:11.441Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-29T12:33:11.782Z level=INFO msg="Upload complete. (866ms)"