ref. https://developer.mozilla.org/ja/docs/WebAssembly/Rust_to_wasm
$ cargo new --lib hello-rust-wasm
$ wasm-pack build --scope daiiz
$ cd site
$ npm run serve
$ cd pkg
$ npm publish --access=public
https://www.npmjs.com/package/@daiiz/hello-rust-wasm
$ cd site
$ npm install
$ npm install --save @daiiz/hello-rust-wasm
$ npm run serve