Two days ago, some GOAT developer published a web-based, local-storage After Effects alternative and it's REALLY GOOD.
https://www.reddit.com/r/vfx/comments/1dqf4kd/i_created_a_free_after_effects_alternative/

Here's the app: https://pikimov.com/

In the reddit thread, the developer casually mentions the app could fit on a 1.44mb floppy disk, lmao unbelievable.