this derivation will be built:
  /nix/store/65l3br3q7y897ry5mskj8hpw2l7x62m8-example-mainprogram-check.drv
building '/nix/store/65l3br3q7y897ry5mskj8hpw2l7x62m8-example-mainprogram-check.drv'

post-build step Route build to niks3: ok
Pushing mulatta/uv2nix-env to https://niks3.mulatta.io
time=2026-09-01T19:48:16.356+09:00 level=INFO msg="Uploading 0 paths to niks3.mulatta.io (1 already cached)"
time=2026-09-01T19:48:16.932+09:00 level=INFO msg="Uploading 1 narinfos"
time=2026-09-01T19:48:17.477+09:00 level=INFO msg="Upload complete. (1.244s)"