Any apps for using a tablet as a second monitor?

[Digimer]

Hi all,

I came across this video; https://youtu.be/jwhFr5Ax3Fk

Setting aside the cheese at the end, it actually seems like a
brilliant idea. I wonder if anyone knows of anything like this for using
android tablets as second/third displays on Fedora? This would make dev
work sooooo much nicer!

I generally don't use an external monitor simply because they're not
portable. A tablet or two though... :D