Manim lets you program video sequences with a few lines of Python code to present mathematical problems in an engaging and scientifically accurate way.
A video telephony system with huge user benefits does not have to be complex. This project starts a phone call with just a single button press and switches channels automatically on a TV.
If you are looking for an alternative to commercial videoconferencing platforms, Jitsi offers an open source solution that lets you build and deploy online videoconferences.
The messenger app Jami offers clients for all popular operating systems and promises maximum anonymity for chats, as well as voice and video calls, by dispensing with central servers.
Pencil2D, an easy-to-use painting and 2D animation program, lets you create small animations quickly. Despite the simple user interface, you might need a little help getting started.