Overleaf is an online collaborative editor for LaTeX editor. It is open source software, and City College's IT department has set up a virtual machine running Overleaf. (Though it is not as polished as the version at overleaf.com, which includes proprietary improvements).) Overleaf can be accessed through this URL:
In order to use this site you need an account. To have an account created, please email email@example.com and indicate which email you would like to use to login.