Self-Taught Developer Builds Streaming AI Copilot and 3D Studio on Smartphone During Factory Breaks

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A self-taught developer has built CoSpatial 3D, a mobile-optimized spatial design and generative concept tool, coding it entirely from a smartphone during short breaks on a factory production line. The project hit a major technical obstacle when the in-app AI Copilot triggered HTTP timeout errors and mobile browser crashes while processing complex requests. To resolve this, the developer replaced standard request-response cycles with Server-Sent Events (SSE) streaming on a Python backend paired with a token-by-token fetch reader loop on the React frontend, eliminating the timeout issues. The app is now live at cospatial3d.xyz, featuring a 3D canvas that renders geometric shapes using raw trigonometry rather than AI-generated approximations. The developer is fully self-funding the project from factory wages and is seeking community support and technical feedback to sustain hosting and GPU costs.

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