Over the last week, I’ve been working on a project called DAG Studio. It’s a visual programming framework, but the ambition is to move it from a simple demo to a production-grade piece of infrastructure. To do that, I’ve been using Gemma 4 as a primary collaborator, and the experience has been surprising.

Most visual programming tools fail at scale because they treat the UI as the source of truth. To build a professional-grade framework, the visual layer must be a secondary concern. The primary concern is the State Engine.