A hand-curated directory of 300+ open source AI projects — from PyTorch and Llama to Ollama and ComfyUI. Eight categories covering frameworks, foundation models, inference engines, agents, RAG, generative media, training tools, and MLOps. Everything here is self-hostable with real open source licenses. No SaaS bait, no API keys, no vendor lock-in. Just free code you can fork, modify, and run yourself.