[IshKebab]

> I think the same should be done for wasm proc macros, too: they should be built by public infrastructure, and then people can opt into using binaries provided by that infrastructure to do their development

That's obviously how it would work. Read dtonlay's proposal. Crates.io would compile the WASM.

[est31]

Only as a verification step though, not to obtain the actual binary, which will be included in the .crate package, where it IMO should not be put.