this derivation will be built:
  /nix/store/k6dvj2199p0nygy64dslq8fhhrixycq0-flake-inputs.drv
building '/nix/store/k6dvj2199p0nygy64dslq8fhhrixycq0-flake-inputs.drv'

post-build step Upload to niks3: ok
time=2026-08-27T22:51:48.151Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (7 already cached)"
time=2026-08-27T22:51:48.560Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-27T22:51:48.993Z level=INFO msg="Upload complete. (960ms)"