this derivation will be built:
  /nix/store/yp1rirsj3n55k1yrx3ljwk5n772idgqa-spaces-integrations-mcp-profile-test.drv
building '/nix/store/yp1rirsj3n55k1yrx3ljwk5n772idgqa-spaces-integrations-mcp-profile-test.drv'

post-build step Upload to niks3: ok
time=2026-09-18T04:28:33.895Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-18T04:28:34.251Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-18T04:28:34.376Z level=INFO msg="Upload complete. (503ms)"