- Pull power inside the wall. Drill a hole on top, another one on the bottom, use one of those magnetic cable pullers. Wires for 5v requires two tiny holes in d

- Pull power inside the wall. Drill a hole on top, another one on the bottom, use one of those magnetic cable pullers. Wires for 5v requires two tiny holes in drywall that's easy to patch later. There's also pretty kits made for TVs, but those require bigger holes (for HDMI, power, etc). - Pull power from the room behind the wall. Maybe it's more out of view here. - Place it next to a door, remove part of the frame, run wires inside the door frame. - Cable channel exists in many different shapes and sizes, not only the boring box ones. - Go the opposite route, why hide your cable? Make it stand out. Like those wall lamps with a brightly coloured / patterned cable hanging in loops down the wall. Turn it into wall art. You can find some pretty wall mounted tablets in the homeautomation and homeassistant reddits :)