If the new version 3.1 is released, this respository would be archived and no more maintained. The new Atlas CLI has a build in Command for bootstrap a clean new project.
It lives at https://github.com/abstractFlo/atlas-starter/tree/docker.
To create a new project based on this template using degit:
npx degit abstractFlo/atlas-starter gamemode
cd gamemode
Note that you will need to have Node.js installed.
Install the dependencies...
cd gamemode
npm install
...then start Rollup:
npm run watch
To create an optimised version of the app:
npm run build