next.js/examples/with-webassembly/package.json

{
  "dependencies": {
    "next": "canary",
    "react": "^16.4.2",
    "react-dom": "^16.4.2"
  },
  "scripts": {
    "dev": "node server.js",
    "build": "next build",
    "build-rust": "rustc +nightly --target wasm32-unknown-unknown -O --crate-type=cdylib src/add.rs -o add.wasm",
    "start": "NODE_ENV=production node server.js"
  }
}