WebAssembly (Wasm) has had a remarkable impact on .NET and C# development in recent years. What began as an experimental project with Blazor has evolved into a key technology that redefines the boundaries between client and server applications.

In this hands-on talk, we trace the development of WebAssembly in the .NET ecosystem: from its beginnings with Blazor, through the introduction of WASI support in current .NET versions, to the latest insights from Microsoft’s .NET Conf 2024. Using live demos and code examples, Oli Sturm demonstrates how developers can leverage WebAssembly to create powerful, secure, and cross-platform applications. While some theoretical basics will be covered, the focus will primarily be on practical tips for effectively using WebAssembly in your own projects.