It's definitely too large, and that is the current state of .NET running on WebAssembly, where missing WebAssembly features (like exception handling) are forcing the compiler to generate a lot of code to compensate.

Still, we have one issue in this build where the PWA webworker doubles parts the payload, but even at ~25MB, it is still too big even if it is downloaded once and cached. For reference, the original windows version is around 13MB on disk for x86.

The point of the Calculator exercise is to show the ability to port the Windows calculator as-is (though translated from C++ to C#) to multiple non-Windows platforms. We continue working on that to improve the payload size and performance further, following WebAssembly, browsers and the .NET runtime advances.

  kaz      22301  0.0  0.0  25188  7264 pts/2    Ss+  Nov03   0:02 bash
  kaz      25976  0.0  0.1  27268  9632 pts/1    Ss   Nov16   0:08 bash
  kaz      27179  0.0  0.0  24368  6704 pts/0    Ss   Nov16   0:01 bash
           ^^^^^ ??