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Thanks.

> CPU can't execute WASM binaries

How was OP able to pipe the output of echo directly to the wasm binary initially?

I think they probably registered a WASM interpreter like wasmtime to automatically run any .wasm files. You can do that using binfmt_misc on Linux.

Yeah, my dev box has a binfmt_misc interpreter for .wasm files set to wasmtime. It's pretty neat!

Writing / edition error? This is before the article notes that:

> However this still depends on the program being compiled for your native OS and distribution as well as present in a folder in your $PATH.

Though it’s also possibly that the author has a wasm interpreter registered (or the wasm file has a shebang for one).