A contact is another SkyClip user that you have established contact with. Once this is done, you can easily share anything with them, and they will see it in their own clip feed.
Clicking people_outline will bring up your pending contact requests - that means someone is trying to establish contact with you! If you want to add a contact, click person_add and search for the person you want to add.
The contacts sidebar makes it easy to share clips with contacts by letting you drag contacts onto clips.
The idea behind SkyClip is that you should not have to maintain yet another collection of stuff; that's why clips automatically expire after a (configurable) retention time.
When we add paid plans, the max allowed retention time will be increased.