Error Tracking

This gets you up and running with Sentry for production error monitoring. It covers the full setup from basic Node.js and Python integrations through Express middleware, source maps, and release tracking. The guides walk through performance monitoring, custom error context, and CI/CD integration. The best practices are sensible, especially around sampling rates and filtering sensitive data. If you're shipping to production without error tracking, this gives you everything you need to catch exceptions before your users tell you about them. The source map configuration alone will save you hours of debugging minified stack traces.