I called this Polyfork, and it's already being used by dozens of people that have an AI centric workflow, since the website can be fully understood and used by agents.
Assets are being built each day, at a rate of 100+ a week, and I'm planning to make it the biggest programmatic-3D library on the internet.
The pipeline is agent-driven and almost fully automated, agents write the asset's code, an independent judge scores it against a rubric, and then I approve every asset by hand before it publishes to keep the quality bar.
Happy to answer more questions about how is built!