this derivation will be built:
  /nix/store/r397c21crilzr446ydvp7ysl4mysvlfb-flake-inputs.drv
building '/nix/store/r397c21crilzr446ydvp7ysl4mysvlfb-flake-inputs.drv'

post-build step Upload to niks3: ok
time=2026-08-28T22:12:35.038Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (7 already cached)"
time=2026-08-28T22:12:35.436Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-28T22:12:35.832Z level=INFO msg="Upload complete. (906ms)"