How to cross-compile with Cargo

Use rustup to install the target toolchain, then run cargo build with the --target flag to compile for a different architecture.

1. Install the desired target toolchain using rustup target add <target-triple>.
2. Compile your project for that target using cargo build --target <target-triple>.

rustup target add wasm32-unknown-unknown
cargo build --target wasm32-unknown-unknown --release

Replace wasm32-unknown-unknown with your specific target triple (e.g., x86_64-unknown-linux-musl for Linux or aarch64-apple-darwin for Apple Silicon).

Cross-compiling lets you build software on your computer that runs on a completely different type of device, like a web browser or a Raspberry Pi. You first tell Rust to download the specific tools needed for that device, then you run the build command with a flag pointing to those tools. It's like buying a specific adapter plug before plugging your device into a foreign wall socket.