Virtual Database Engine in SQLite

Hello, I'm Maneshwar. I'm working on git-lrc : a Git hook for Checking AI generated code. AI agents write code fast. They also silently remove logic, change behavior, and introduce bugs -- without telling you. You often find out in production. git-lrc fixes this. It hooks into git commit and reviews every diff before it lands. 60-second setup. Completely free. Yesterday we wrapped up the Pager module the layer that shields SQLite from hardware chaos. Today we climb one level higher. Above the tree module. Above the pager. Right at the heart of SQLite. This is where SQL actually comes alive . Welcome to the Virtual Machine (VM) also known as the Virtual Database Engine (VDBE) . The VM: Where SQL Becomes Action If the pager ensures correctness , and the B-/B+-trees ensure structure , the VM ensures behavior . It is the only module in the backend that actively thinks . Everything below it is passive: The pager moves pages. The tree module rearranges nodes. The OS reads and writes bytes. B