[pixtur]

It's actually pretty good at creating and rendering linear animation clips and syncing to soundtracks (e.g. music videos). You then can export the animation as mp4 or image sequence.

You can also use "TimeClips" to do non-linear editing.

Another use-case might be small interactive installations or info-systems. It has basic support for fetch REST-apis and parsing data. Other inputs might be sensors like MIDI or OSC.