this derivation will be built:
  /nix/store/97bnplpbsj78j7hnapplafk1gxfx1pdl-spaces-signal-cli-flags-test.drv
building '/nix/store/97bnplpbsj78j7hnapplafk1gxfx1pdl-spaces-signal-cli-flags-test.drv'

post-build step Upload to niks3: ok
time=2026-09-15T21:10:53.050Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-15T21:10:53.857Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-15T21:10:54.775Z level=INFO msg="Upload complete. (1.752s)"