Demonstration of Svelte 5 Custom Elements to build reusable, interactive components (Custom Elements) that are host framework agnostic (once built), integrate seamlessly with any web application and do not require a module system (as demonstrated in this server-rendered ASP.NET MVC page). By compiling Svelte components as browser-native Custom Elements (part of the Web Components standard), we can achieve clean encapsulation of logic and state while maintaining standards compliance and framework independence.