@saint: YouTuber PewDiePie built a custom $20,000 PC designed to fine-tune his own AI model and support protein-folding simulations for disease research. The machine is equipped with 10 NVIDIA RTX 4090 GPUs, enabling him to run large language models locally while keeping his data private from big AI companies. It features an “AI council” of smaller models that vote on answers, as well as tools for fast local queries and medical research simulations. PewDiePie plans to fine-tune and release his own model to encourage self-hosted AI experimentation.