This is a server/social-network for sharing images. All posts are end to end encrypted, so you know exactly who is able to see your content.
This project is designed to share images via a social network. All content is E2E encrypted. That means no one is able to read your messages except the recipients, not even the server operator.
The social part is all configurable too, at a pretty granular level. So you can configure things like -- do you want to let your friends see who your other friends are? Or hide that info from everyone? In any case, you get to choose who can read that. Not even the server-operator is able to read that info, unless you allow them to.
This is a difference from traditional social networks, like Instagram, where the server can see all your data.