this derivation will be built:
  /nix/store/3in0frmdynhbld69zq0dvvr5yh3n1j39-flake-inputs.drv
building '/nix/store/3in0frmdynhbld69zq0dvvr5yh3n1j39-flake-inputs.drv'

post-build step Upload to niks3: ok
time=2026-08-28T06:40:53.572Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (7 already cached)"
time=2026-08-28T06:40:54.068Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-28T06:40:54.444Z level=INFO msg="Upload complete. (990ms)"