Everything I've shipped, from quick landing pages to full-stack products.
A CPU inference engine for GPT-2 (124M) implemented entirely from scratch in C, no PyTorch, no llama.cpp, no framework of any kind. Every component, tensor operations, the byte-level BPE tokenizer, multi-head attention, and the full transformer forward pass, was hand-written and verified byte-identical against Hugging Face's reference implementation. Ships with a live FastAPI + React dashboard for benchmarking two hand-built performance optimizations (a KV cache and multi-threaded matrix multiplication) in real time.