There are a lot of people recycling this particular idea and typically they will end up sticking a Raspberry Pi (assuming they can get it) into an enclosure that serves the intended purpose. You can then use the base OS to hack around on it until it looks and feels like the device you would like to have. Some of these are very impressive.
One example: (there are 100's)
https://www.raspberrypi.com/news/scripto-distraction-free-wr...