Know where it breaks.

Ollama drops three-quarters of a model's bits by default. Squeezing an image that hard yields garbage, yet 4-bit quants retain 95% accuracy. A 64-build experiment showing how block scales and mixed precision work—and why the loss lands on tokens the model was never sure about, starting at digit 813 of π.

Building a 48 GB dual Intel Arc Pro B60 box during a memory price spike to see where memory bandwidth turns into tokens. A $2,360 rig still won't replace a $20 frontier subscription, but it handles private, unattended batch work—and taught me inference mechanics a benchmark table never could.

The best model an 8 GB Mac mini can run, handed the same spec a frontier model one-shot in seven minutes. What a benchmark gap actually looks like: silent context truncation, streaming timeouts, and code that degrades the longer the session runs.

I built a zero-dollar streaming service with zero titles to find out what zero costs. Self-hosted media barely pays back in seven years. Replacing an AI subscription with a $2,500 desktop takes seventeen, on hardware that won't last five.

Four things I called boundaries turned out to be a wall, a fence, a law, and etiquette. One question sorts them (what happens if this is ignored?) and tells you which GitOps steps are safe to hand an agent.

Ephemeral clients driving a perpetual environment: a headless agent daemon in a container with a read-only root, an empty home, and four deliberate mounts. Not a sandbox. An auditable list of what the agent can touch.

Did your work originate the intelligence, or relay it? A test for a title that names a tool instead of a position, and why it's headed the way of “NoSQL Engineer.”

A weekend, $73 of API calls, and a working clone of a sketch-to-CNC product. The threat isn't the hobbyist who stops once the itch is scratched. It's what happens to any business whose main defense was “this was hard to build.”

The cost of producing code has collapsed. The cost of understanding it has not. Interviews still measure the first one, and AI turned an old noisy filter into a compromised one.