Cris Grossmann — Building Notes https://crisgrossmann.com/notes/ Notes from the workbench. No slides — only things that survive contact with reality. en PCI, 1999 — the internal comms tool I built at 17 https://crisgrossmann.com/pci/ https://crisgrossmann.com/pci/ Sat, 12 Sep 2026 00:00:00 +0000 823 lines of Java, two UDP ports, six text files. The first version of a problem I'd spend fourteen years on. Jini, 1999 → the house, 2026 https://crisgrossmann.com/jini/ https://crisgrossmann.com/jini/ Sat, 12 Sep 2026 00:00:00 +0000 Discovery won. Events won. Leasing lost, and so did the idea that a device brings its own driver. What my house actually runs on, measured. The Swarm — twelve agents, two lakes, one morning https://crisgrossmann.com/orchestrator/ https://crisgrossmann.com/orchestrator/ Twelve headless agents on a Mac, two Postgres lakes, one brief at 07:30. Anatomy of a Ledger https://crisgrossmann.com/ledger/ https://crisgrossmann.com/ledger/ 16,094 transactions, 97 accounts, 2,284 payees — five things the database knew that I did not. The Life Grid https://crisgrossmann.com/life-grid/ https://crisgrossmann.com/life-grid/ 40,423 calendar events since 2011 on one grid. The Health Lake https://crisgrossmann.com/health-lake/ https://crisgrossmann.com/health-lake/ 3,778 sessions, 8,590 nights, 75 races since 2012. The Race Ledger https://crisgrossmann.com/race-ledger/ https://crisgrossmann.com/race-ledger/ Seventy-five start lines since 2012. AI Race Engineering — the 4-second call https://crisgrossmann.com/race-engineering/ https://crisgrossmann.com/race-engineering/ It missed the race by two minutes. It called the split that mattered to 4 seconds.