[Koa.js](https://koajs.com/) is a modern web framework built on [Node.js](https://nodejs.org/en/). It allows developers to build high-performace and scalable web applications by focusing on a concise and extendible API built on asynchronous functionality in Node.js. * Deploy a new [Ubuntu 20.04 Vultr cloud server](https://www.vultr.com/servers/ubuntu). * Set up a [non-root user with sudo privileges](https://docs.vultr.com/how-to-use-sudo-on-a-vultr-cloud-server#create-a-sudo-user-on-debian--ubun......