this derivation will be built:
  /nix/store/90lvz1rslhsz7xn92ihi04sb0css3g8d-spaces-signal-cli-flags-test.drv
building '/nix/store/90lvz1rslhsz7xn92ihi04sb0css3g8d-spaces-signal-cli-flags-test.drv'

post-build step Upload to niks3: ok
time=2026-09-17T04:20:22.701Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-17T04:20:23.061Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-17T04:20:23.526Z level=INFO msg="Upload complete. (954ms)"