Notes from the
engineering trenches.

A dozen people and about a hundred sensors when I joined. Thousands of sensors around the world today. The road between, as my commit history remembers it.

How we took an API from a few thousand requests a month into the billions — and why the hardest part wasn't throughput, it was the migration nobody noticed.

Shipping LLMs into real production systems — not demos. What it took to trust a model enough to put it on the hot path, and the guardrails that made it safe.

A side project that turned into 4,830 papers, a simulation engine, and a book. What building it taught me about evidence, humility, and shipping research in the open.

Every broker I reached for was wrong for the edge in a different way. So I started writing one that treats power loss as the normal case — durable, self-healing, one static binary.

Redis runs the world's caches on a single thread. What does a from-scratch, shared-nothing, thread-per-core cache that still honors the Redis contract actually do?