[yuz]

There is an amazing free alternative: https://goitpod.io

You simply prefix your GitHub (or gitlab) url with "gitpod.io/{your-repo} and you are instantly redirected to VM with with your repo cloned and ready to use, a fully customizable dev environment, vscode, extensions, machine is public on the internet so you can "npm start" and actually start serving your site.

[tommica]

Fixed link: https://gitpod.io/