this derivation will be built:
  /nix/store/r8q7xk2pa4z7f4ss48s2kmy0qaag221g-docs-reference-current-test.drv
building '/nix/store/r8q7xk2pa4z7f4ss48s2kmy0qaag221g-docs-reference-current-test.drv'
docs-reference-current-test> docs/reference matches the option tree

post-build step Upload to niks3: ok
time=2026-09-19T04:17:48.955Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-19T04:17:49.325Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-19T04:17:49.434Z level=INFO msg="Upload complete. (527ms)"