this derivation will be built:
  /nix/store/mwn7z1q26a7ynjkfja1pvqnym671i535-flake-inputs.drv
building '/nix/store/mwn7z1q26a7ynjkfja1pvqnym671i535-flake-inputs.drv'

post-build step Upload to niks3: ok
time=2026-08-29T18:56:15.364Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (7 already cached)"
time=2026-08-29T18:56:15.729Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-29T18:56:16.030Z level=INFO msg="Upload complete. (790ms)"