[next-mdx-remote] error compiling MDX: Unexpected character `5` (U+0035) before name, expected a character that can start a name, such as a letter, `$`, or `_` 90 | - **Comprehensive Testing:** In the final two weeks, perform end-to-end testing of all user flows. This includes cross-browser testing (Chrome, Firefox, Safari, Edge) and cross-device (desktops, tablets, smartphones). Verify that the app’s responsive design holds up and that features like voice and WebGPU fallback behave on different platforms (e.g., Safari might not have WebGPU, does WASM fallback work and is it acceptably fast?). Test with varying network speeds (use dev tools to simulate slow 3G) to ensure the loading indicators and lazy loading work as expected. 91 | - **Accessibility Audit:** Do a full accessibility audit and fix any remaining issues. Use tools like Lighthouse or WAVE to catch things like missing alt attributes or low contrast. Have someone navigate the entire app using only a keyboard and make sure all interactive elements can be reached and activated. For screen readers, ensure that dynamic updates (like new ChatBubble messages or carousel images) announce themselves via ARIA live regions if appropriate. For any video content in documentation, provide captions or text alternatives. > 92 | - **Performance & Load Testing:** Simulate real-world usage patterns. For example, measure the time to first interaction on a fresh load (cold cache) vs. a returning user (warm cache) – ensure it’s within acceptable range (you might target, say, <5s to load interface, <10s to answer first question on a decent device). Use profiling tools to catch any memory leaks (load and unload features repeatedly and see if memory stabilizes). If possible, do a small beta test with external users/developers to gather feedback on performance and fix any critical bottlenecks. | ^ 93 | - **Scalability Considerations:** Since the app may get traffic spikes after launch, ensure the backend components are scalable. For edge functions, verify concurrency limits and consider setting up a queue or fallback if they get overloaded (maybe automatically switch to client-side processing if server is busy, as a clever fallback). Also, make sure the database or real-time service for collaboration can handle multiple rooms/users (set rules to prevent abuse, etc.). From a front-end perspective, the app itself runs on the client, so scalability there is more about efficient CDN delivery and not breaking on high client counts. 94 | - **Release Preparation:** Finally, prepare for deployment and launch publicity. Double-check that all environment configs are set for production (e.g., use production API endpoints, enable any monitoring tooling). Set up analytics and monitoring in the production environment to track usage, crashes, and performance metrics. This could include services like Google Analytics for user behavior and Sentry or LogRocket for error logging. Ensure compliance with any usage of third-party APIs or models (e.g., attribution for model sources, any required licenses are honored). More information: https://mdxjs.com/docs/troubleshooting-mdx