Layer by Layer · The Newsletter

Production AI, explained simply.

One concept, one working project, every edition. Written for engineers who ship, in the time a coffee takes: about seven minutes, plain words, real numbers from real runs.

Subscribe freeFree forever. Unsubscribe anytime.

What you get

A new edition every Tuesday and Friday, 8 AM Central.
A runnable GitHub project in every edition. Run it, break it, keep it.
Real production failures, explained in plain words, with the fix that held.
The free 100-question AI Engineer interview pack when you join.

Start with Edition 0Your RAG did not notice the document changedThe stale-index failure, caught live in a 260-line demo, and the freshness loop that fixes it. Plus: latent semantic memory, explained simply.Read Edition 0 →

Prefer paper first? The same editions live as long-form articles in Learn, and every project is public in Projects.