Writing

Notes on building software, AI systems, and the tools around them.

Everyone's building RAGAug 2026 · 20 min Managing context: why less beats moreAug 2026 · 16 min Prompt engineering, dissectedAug 2026 · 20 min Open source AI mostly isn'tAug 2026 · 9 min Self-hosting a model does not save moneyAug 2026 · 10 min Let's get the basics right: LLM fundamentalsAug 2026 · 25 min From tokens to a predicted word: how a transformer actually runsAug 2026 · 13 min Notes on Karpathy's LLM deep diveAug 2026 · 15 min Self-learning agents, dreaming, and memory at scaleAug 2026 · 16 min How agents remember thingsJul 2026 · 14 min Let's build a web analytics toolJul 2026 · 45 min How MCP actually worksJul 2026 · 14 min How two people type in the same document without ruining itJul 2026 · 17 min How I learned Python in 2 hoursJul 2026 · 14 min