Things I build because they should exist.

A free guide to the foundations of the Christian faith, written for people who are new to it. It moves in five steps: Jesus, the Bible, beliefs, history, and traditions.

Along the way it covers all 66 books of the Bible, 70 key figures and 12 major church councils, with a searchable glossary, a timeline of councils and heresies from AD 30 to today, maps of how Christianity spread, and a side-by-side look at the Catholic, Orthodox and Protestant traditions.

A hands-on guide to systems design. Instead of only reading about load balancers, queues and caches, you start the real thing with Docker Compose, run a demo, and watch how it behaves.

It runs through 30 lessons, from estimation and consistency models to sharding, event streaming, sagas, rate limiting and vector search, then brings them together in four capstone designs: TinyURL, a news feed, a chat system and a distributed rate limiter.