this derivation will be built:
  /nix/store/5p2na757hvb05b8mr17pmv6fiq1ah8dq-spaces-integrations-mcp-profile-test.drv
building '/nix/store/5p2na757hvb05b8mr17pmv6fiq1ah8dq-spaces-integrations-mcp-profile-test.drv'

post-build step Upload to niks3: ok
time=2026-09-17T10:47:01.495Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-17T10:47:02.054Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-17T10:47:02.160Z level=INFO msg="Upload complete. (687ms)"