This is a tool allowing you to take a wasi compliant WebAssembly file and replace all functions wasi depends on by meaningless stubs.
If you don't depend on printing or reading/writing files, your code will probably still work and it will now be compatible with typst or host-wasmi.
From the wasi-stub directory (where this README is), run cargo install --path ., you will need a working rust toolchain.
Once you installed wasi-stub, you can simply run wasi-stub my_library.wasm from the terminal.
Inspiration for this comes from [https://github.com/dicej/stubber]. It replaces stubbed functions with a trap, while wasi-stub replaces them with functions that do nothing.