this derivation will be built:
  /nix/store/nb4lxld8cphfwmxl9k3cxncq7ax9a4xc-flake-inputs.drv
building '/nix/store/nb4lxld8cphfwmxl9k3cxncq7ax9a4xc-flake-inputs.drv'

post-build step Upload to niks3: ok
time=2026-08-25T21:16:15.347Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (7 already cached)"
time=2026-08-25T21:16:15.730Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-25T21:16:16.087Z level=INFO msg="Upload complete. (844ms)"