The error that ruins your Monday You spent the weekend migrating your build pipeline to a faster JavaScript runtime. Tests passed locally. CI was green. You shipped it. Then Monday morning, your monitoring lights up: Error: The module 'XXX.node' was compiled against a different Node.js version using NODE_MODULE_VERSION 108. This version requires NODE_MODULE_VERSION 115. Or worse — silent failures. Functions that worked yesterday now return undefined. A crypto library that always hashed correctly now segfaults on production-shaped inputs. I ran into this last month migrating a media-processing service off an older Node version. The lesson cost me a Sunday and most of my patience. Why native modules are so fragile When you require('sharp') or require('better-sqlite3') , you're not just pulling in JavaScript. You're loading a compiled .node binary that talks to the engine through one of three ABIs: Direct V8 bindings — raw C++ calls into V8 internals. Fast, brittle, version-locked.…