Loads of guides in the links Sid mentioned.
Plenty to watch in our Remote Work playlist at GitLab Unfiltered: https://www.youtube.com/playlist?list=PL05JrBw4t0Kq7QUX-Ux5f...
We're doing a webinar on Friday (2020-03-13) and would be happy to answer Qs there as well: https://gitlab.zoom.us/webinar/register/WN_hSUtLvcSTsqQ7ftNb...