Field notes from Kerry Kier — the writing side of The Known Good. I'm a systems engineer working across infrastructure resilience, emergency communications, and practical AI deployment. Notes on what I'm building, breaking, and figuring out: outages and how they actually fail, security architecture, self-hosted AI stacks, and the gap between what a system claims and what it does. The reference data lives at theknowngood.com. This isn't thought leadership. It's field notes.