Headless installation

Hi guys. How can I setup a headless installation on ubuntu server 19? Where can I found a installer and a tutorial for do it?

Our latest version available is on 1.5.7: Insync 1.5.7 builds

This should also be able to help you out: https://help.insynchq.com/en/articles/2853764-linux-headless-and-cli-community-support