https://compusential.com/blog Journal of a passionate technologist building production AI Tools (RAG platforms, intelligent query systems, and agentic workflows). Hacker of local models across an NVIDIA DGX Spark (128GB Unified VRAM) & an RTX 4090, rangefinder shooter (Leica M10 with Summicron 35 & Summilux 50 ASPH), and trilingual builder based in England. en-GB Yang Pei Yang Pei Thu, 20 Aug 2026 00:00:00 GMT https://compusential.com/blog/the-cuda-moment https://compusential.com/blog/the-cuda-moment From bricking an early NVIDIA RIVA 128 at age 13 in Beijing to walking to work at NVIDIA when CUDA 1.0 launched on the GeForce 8800 GTX — the origin of Compusential. Thu, 20 Aug 2026 00:00:00 GMT Yang Pei cudanvidiagpu-computingretro-hardwareorigins https://compusential.com/blog/the-local-silicon-equation https://compusential.com/blog/the-local-silicon-equation Why spending £4,000 on a 128GB NVIDIA DGX Spark alongside an RTX 4090 makes sense: the friction of the cloud hourly meter, memory bandwidth vs capacity trade-offs, and running 131k context on local silicon. Thu, 20 Aug 2026 00:00:00 GMT Yang Pei hardwaregpu-computinglocal-llmproduction-aivllm