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Comment on Wasm3 compiles itself (using LLVM/Clang compiled to WASM)

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Self-hosting (compilers) https://en.wikipedia.org/wiki/Self-hosting_(compilers) :

In computer programming, self-hosting is the use of a program as part of the toolchain or operating system that produces new versions of that same program—for example, a compiler that can compile its own source code

How big of a milestone is self-hosting for a language?

The wikipedia article lists quite a few languages for which there are self-hosting compilers.

JS can already write more JS. Are there advantages and risks introduced by this new capability for browser-hosted (?) WASM LLVM to compile WASM?

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