The GitHub importer is intended to be an easy way to get code into a HyperDev project from GitHub. However, projects might not work ‘out of the box’ as it depends on how things have been saved in GitHub - most things should be able to work, but they might need adapting for use on HyperDev as there are some restrictions - like the filesystem not being writeable except in /temp.
If you’re interested in working with Webpack, here’s an example working project - https://hyperdev.com/#!/project/hurricane-terrier.
Files in folders ‘views’ and ‘public’ are automatically put into the front-end section in HyperDev, otherwise they default to back-end. You can drag them into the front-end section should you want to.