Run native, statically-compiled apps on any platform, using WebAssembly.
Examples include AssemblyScript, Rust, C/C++, TinyGo, Zig, Virgil, WAT, etc.

This does not use Wasm3 engine. The approach is similar to WasmBoxC or RLBox:

1. Compile source code to wasm
2. Translate wasm to C using wasm2c
3. Compile produced C, link with a thin runtime implementation using the native platform toolchain

• Language/toolchain decoupling
• Resilience against attacks (RCE, Control-flow hijacking)
• Sandboxing / SFI (Software Fault Isolation)
• Enables wasm transformations, like instrumentation or gas metering
• Software-based memory virtualization
• Moderate runtime overhead (mostly depends on the source language/runtime)
  • Small performance hit (~10-30% slowdown compared to native modules)
  • Moderate binary size increase
• Highly portable

$ make APP=rust Finished release [optimized] target(s) in 0.00s $ pio run -e esp32 -t upload $ pio device monitor Initializing WebAssembly... 🦀 Rust is running! $ make APP=assemblyscript > npm run asbuild:optimized $ pio run -e esp32 -t upload $ pio device monitor Initializing WebAssembly... 🚀 AssemblyScript is running! $ make APP=tinygo $ pio run -e esp32 -t upload $ pio device monitor Initializing WebAssembly... 🤖 TinyGo is running! 

Ensure the required tools are in your PATH:

• WABT v1.0.36
• Binaryen v118

# AssemblyScript v0.27 (needs Node.js) make APP=assemblyscript # Rust 1.80.1 rustup target add wasm32-unknown-unknown make APP=rust # C/C++ (needs Clang) make APP=cpp # C99 Coremark (needs Clang) make APP=coremark # TinyGo v0.33.0 + Go v1.23.0 make APP=tinygo # Zig v0.13.0 make APP=zig # Virgil (Aeneas III-7.1632) make APP=virgil # WAT make APP=wat

Resulting WASM file comparison:

# For ESP32: pio run -e esp32 -t upload # For ESP8266: pio run -e esp8266 -t upload # For Raspberry Pi Pico: pio run -e rpi-pico -t upload # Open serial monitor pio device monitor --quiet

Requires particle-cli. Should work on all Particle devices i.e. Spark Core, Photon, Electron, Argon, Boron, P2 / Photon2:

particle flash MyDevice ./src/* # Open serial monitor particle serial monitor --follow

This project is released under The MIT License (MIT)