A specific challenge with Mini Apps is caching. If a developer updates the app, users might still see the cached version. The course teaches cache-busting strategies using query parameters in the Bot URL or configuring cache-control headers on the server.
The course critiques traditional responsive design. It advocates for a "thumb-friendly" design philosophy where interactive elements are placed at the bottom of the screen, adhering to the Material Design guidelines often used in Android but adapted for Telegram’s specific constraints. udemy telegram mini app developer master course