I Replaced SQLite with a Rust Database in My AI Robot — Here's What Happened

I used SQLite for everything. For years, it was my default answer to "where do I store stuff." Config files, sensor logs, user data, even model outputs — SQLite handled it. When I started building an AI-powered robot that needed on-device memory, the choice felt obvious: embed SQLite, done. Three weeks later, the robot's memory was a mess of incompatible schemas, I was writing custom serialization code for every data type, and I'd accumulated roughly 400 lines of glue code just to store and re...