In 2022, I gave a talk at a virtual conference with an unforgettable name: HYTRADBOI, which stands for "Have You Tried Rubbing a Database On It?" Its goal was to discuss unconventional uses of database-like technology, and featured many excellent talks. My talk "How to Query (Almost) Everything" receivedcopiouspraise. It describes the Trustfall query engine's architecture, and includes real-world examples of how my (now-former) employer relies on it to statically catch and prevent cross-domai...