I reached the 2000 Twitter follower mark, yay!
While working on FilePond and Doka I've been posting animated WIP gifs and that has worked great to attract new interested in my web components. I was inspired by indie game developers doing the same.
I post gifs of what I'm working on, UI animations accompanied by questions, bloopers, or for example performance comparisons.
I use Kap to capture the gifs, it's free.
EZGif is useful to shave of bits and bytes if needed: