Awesome concept! I've never been a fan of looking up flags in another tab, and hunting down which ones are in use. Just seems like it should be an automatic process. The explainshell website is great, but it doesn't work offline. Fish's man page auto-completion is useful, but it lists all the flags, instead of the ones currently in use. If I could have this for every command out there, along with the binary's location/version at the top, I'd be a happy camper.