I installed this on an Ubuntu MATE machine. Very nice!
A couple of things that I had to do before using this: 1) find ytsearch (wasn't automatically added to path) and 2) dig into the source to find where cache was kept. The keybindings are fairly intuitive, but a couple didn't work as expected...still getting used to it.
I really like how quickly this can search and download videos. And it's extremely easy to queue and play cached videos. However, this seems like something I would use primarily to build an audio library. It's simple enough to play audio from the cached videos, but space could be saved by just downloading audio instead of video.
If you are taking wish list requests, it would be nice to be nice to have a keybinding for downloading audio.
Thanks for sharing this!