`Bun.argv`を使う。
```ts
const [bunPath, cwd, ...args] = Bun.argv;
console.log({ bunPath, cwd, args });
/*
❯ bun . hoge hoga
{
bunPath: "/home/tadashi-aikawa/.local/share/mise/installs/bun/1.1.3/bin/bun",
cwd: "/home/tadashi-aikawa/tmp/hoge-bun/",
args: [ "hoge", "hoga" ],
}
*/
```