>>5622132you can't save a webm directly from twitter because the only format available is mp4. i do like this:
youtube-dl [tweet URL]
ffmpeg -i [saved mp4 file] -an -c:v vp8 -b:v 1.5M [output webm file]
you can leave out "-an" if you want the sound included (and probably then give -c:a opus, i suppose) but then you can't post it on 4chan.
