Nemotron 3's release crystallized a shift in how the most technically grounded practitioners are framing the open-source case. The argument that openness matters for weights has become background noise — the version that has traction now is that openness matters for the orchestration layer. One practitioner's post [4] enumerated exactly what that means in practice: task format, review path, isolation, transcripts, backend routing. These are the components a team running a production agentic system needs to inspect when something goes wrong, and they are precisely the components that closed workflow…