this derivation will be built:
  /nix/store/yq4gjjb7fd9fyh8c4lb8vapzq8clklkx-flake-inputs.drv
building '/nix/store/yq4gjjb7fd9fyh8c4lb8vapzq8clklkx-flake-inputs.drv'

post-build step Upload to niks3: ok
time=2026-09-01T09:31:43.225Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (7 already cached)"
time=2026-09-01T09:31:43.613Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-01T09:31:43.943Z level=INFO msg="Upload complete. (833ms)"