alt Hacker NewsThis is s bit of an unfair comparison, isn't it?
Since WASM ships with a garbage collector that C# can use while Rust does all the memory management itself, of course it will be bigger.
EDIT: Reading OP more thoroughly I think I'm wrong. Apparently in the compared versions, the C# version ships a runtime with garbage collector.
C# doesn't (and can't) use WASM GC.
The comparison is unfair for other reasons (the C# runtime was optimized for WASM size and the Rust not, it's possible to be much smaller in Rust), but it's still cool.