The shell script (3BodyShell.sh) depends almost entirely on filepaths to my machine and requires use of the Twitter/Tumblr/YouTube/Mastodon APIs through their respective upload scripts but is a good template to base your own off of (if you desire), and the FFmpeg command there by itself ...
$dankmeme └─ Only the dankest. $dirtyjoke └─ Let's see if reddit can be dir-... oh... uh.. funny... (bot-admin only) $dragon └─ From the past - when great winged beasts soared the skies. $earthporn └─ Earth is good. $joke └─ Let's see if reddit can be funny...