this derivation will be built:
  /nix/store/2l1k8ys5631fqr3dh6sa9s95xb33dbd1-flake-inputs.drv
building '/nix/store/2l1k8ys5631fqr3dh6sa9s95xb33dbd1-flake-inputs.drv'

post-build step Upload to niks3: ok
time=2026-08-31T18:39:53.087Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (7 already cached)"
time=2026-08-31T18:39:53.509Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-31T18:39:53.897Z level=INFO msg="Upload complete. (1.368s)"