Dev has Claude build a custom UI renderer that auto-generates promo videos for PyNode
dr_hamilton · reddit · 2026-10-20
A Node-RED power user shared PyNode, his Python pipeline project for computer vision work, and had Claude Opus 5.5 build a dedicated UI rendering engine to produce its promo video.
The promomaker script spins up pynode, sets up a flow, renders the actual frontend UI components in a headless browser with custom CSS, and records frames to generate the video. The whole process is fully automated: after any UI update, the video re-renders with the same camera motions, and the inference shown in the video runs on his real GPU pipeline. Open-sourced on GitHub.
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