For a long time I've been wanting a private, E2EE social media app for sharing pics/videos of my son with friends and family, but haven't found anything fitting that description. Like most people, we've just been using group texts; the closest alternative I found was shared photo albums, but we wanted the ability to make "posts" with a few pictures and some text. So I've been building it and using it for a couple months with some friends, it's a strange feeling to have the ergonomics of social media with none of the toxic nonsense.
Most people I know are using group texts for this, but I find that unsatisfying because my wife and I want to share stuff with ~20 people, but we don't want to be blasting all of them with texts all the time, or put those 20 people in a group text with each other. We wanted something pub/sub, but with the privacy of E2EE chat apps, and so easy to use our parents will use it.
It's a React app running on Cloudflare Workers, and there's an iOS app in the works using Capacitor; the E2EE is built on OPAQUE. There's a landing page/signup at freefollow.org if you'd like to learn more. I'm working on some demo videos.