Each psibase service (smart contract) has its own subdomain hosting its own interface (applet) which can securely communicate private info with other applets entirely within the browser.
每个 psibase 服务（智能合约）都有自己的子域托管自己的界面（小程序），该界面可以完全在浏览器内与其他小程序安全地通信私人信息。