Field notes on security incidents, AI governance, and running production infrastructure with no team and no budget.https://davidcberry.com/en-ushttps://davidcberry.com/student-data-stays-local/https://davidcberry.com/student-data-stays-local/A working case study in keeping student data local: the threat, the decision, the build, how it was verified, and the risk that is still sitting there. Local LLM inference on a two-GPU node, with the failure behavior written down in advance.Sun, 16 Aug 2026 00:00:00 GMTai-governancehttps://davidcberry.com/ai-classroom-policy/https://davidcberry.com/ai-classroom-policy/A classroom-tested AI policy for teachers: three permission levels stamped per assignment, enforcement by defensibility instead of detectors, and how to adapt it for every subject. Free one-page download.Thu, 30 Jul 2026 00:00:00 GMTai-governance