Configure in WebAssembly SDK: - `pthreadPoolInitialSize` - `pthreadPoolUnusedSize` - `jsThreadBlockingMode` See https://github.com/dotnet/runtime/pull/99833 See [also](https://github.com/dotnet/runtime/pull/98637#discussion_r1494482384) See also https://github.com/dotnet/runtime/pull/98118