these 2 derivations will be built:
  /nix/store/r4ns712w79k8mzymia4nmk7ld7qgc7jq-hermes-virtio-gpu.drv
  /nix/store/8qdlisbl9a6l1zlm5ddl7d7zfgmnhkl5-hermes-virtio-gpu-test.drv
building '/nix/store/r4ns712w79k8mzymia4nmk7ld7qgc7jq-hermes-virtio-gpu.drv'
building '/nix/store/8qdlisbl9a6l1zlm5ddl7d7zfgmnhkl5-hermes-virtio-gpu-test.drv'
hermes-virtio-gpu-test> OK: the probe answers 0 for a virtio GPU only

post-build step Upload to niks3: ok
time=2026-09-03T10:09:21.256Z level=INFO msg="Uploading 0 paths to 127.0.0.1 (1 already cached)"
time=2026-09-03T10:09:21.550Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-03T10:09:22.051Z level=INFO msg="Upload complete. (840ms)"