As a TOF user, you can access the directory in many ways.
The simpliest and easiest way is by navigating to app.tonfriends.tech and having access to joining any groups that are apart of the TOF community.
A less known method for accessing TOF is via the official bot miniapp found at @toftechbot or telegram link.
This method automatically determines your telegram account and allows you to directly join and leave groups via the interface.
If a telegram group is apart of the TOF community, any user can type /groups@toftechbot and be able to access the miniapp similar to the above method.
This lets users explore groups in a seamless and easy interface, allowing members apart of the TOF community to find like minded groups.