Meet GPenT, an open-source, wall-mounted polargraph pen plotter with a flair for generative art. It blends custom hardware, Marlin firmware, a Flask web UI running on Raspberry Pi, and Gemini-generated drawing prompts.
The stack? Machina + LLM. Prompts go in, JSON drawing commands come out. That drives a real-world plotter that spits out SVGs and algorithmic patterns like it’s no big deal.
