Skip the portable monitor and use a $25 Fire Tablet as a second (or third) screen instead

I’ve been modding Kindles and Fire tablets for several years now. Even old devices have plenty of uses when you’re finished with them. Originally, I was going to turn an e-ink Kindle into a secondary display. Just as I was preparing to work on the project, something crazy happened: the dang thing broke down and died on me. It could not be revived. I guess that’s what happens when you pick up a Craigslist special for a deep discount.