Does quarkly allow developers to deploy offline

Can I build a quarky project and run in the internal network?
Can quarkly do that?

Yes, sure! You can download your project as zip-archive (press "Publish" button) and continue developing offline. If you want to do this please follow the instruction in Readme.md in your exported zip-archive.
You can continue to work in Quarkly by downloading the archive and adding the necessary files and changes manually to the repository.