Common tooling

The following tools are required or optionally usable for most the supported guest languages.

First of all, to install wasm-tools via cargo, you need to install the latest stable version of Rust. The recommended way to do so is using https://rustup.rs (opens in a new tab):

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

rustup install stable && rustup default stable

rustup target add wasm32-wasi

cargo install --force --locked  wasm-tools@1.210.0

wasm-tools --version
wasm-tools 1.210.0

cargo install --force --locked wit-bindgen-cli@0.26.0

wit-bindgen --version
wit-bindgen-cli 0.26.0

Install wasm-opt (optional)

An optional tool for making the wasm modules smaller (recommended for Swift) is wasm-opt

First you need to install the latest version of Go:

brew install golang

Then use it to install wasm-opt:

go install github.com/gonowa/wasm-opt@latest