this derivation will be built:
  /nix/store/pi9pw7h7jiab4s547mbwq1ksrwq5jxgi-flake-inputs.drv
building '/nix/store/pi9pw7h7jiab4s547mbwq1ksrwq5jxgi-flake-inputs.drv'

post-build step Upload to niks3: ok
time=2026-08-25T21:24:20.304Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (7 already cached)"
time=2026-08-25T21:24:20.624Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-25T21:24:20.927Z level=INFO msg="Upload complete. (727ms)"