this derivation will be built:
  /nix/store/r8nhxvzg715hiffi29l5jnpii3vkpllr-docs-reference.drv
building '/nix/store/r8nhxvzg715hiffi29l5jnpii3vkpllr-docs-reference.drv'

post-build step Upload to niks3: ok
time=2026-09-03T14:17:36.399Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-03T14:17:36.712Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-03T14:17:36.860Z level=INFO msg="Upload complete. (493ms)"