What is the best way in Ubuntu to attach a small screen (say, 5 inches by 7 inches) -- maybe one of those digital picture frames -- and have it continually display Unix epoch time?
I'm a DB developer and always looking at timestamp columns in various backend systems. By having epoch time on my screen at all times, I can instantly tell if the timestamps in the DB are somewhat fresh or not (rather than have to look it up at the moment.)
However, the more windows I open, eventually the window with epoch time is covered -- so I'd like to have a physically separate screen (could be a repurposed mini tablet, picture frame or any other small LCD that can be " talked to" by Ubuntu