Very simple ambient light thingy that that also fetches unread emails from my server and sets 1 LED red for each unread email, the code for that functionality can be found here: https://github.com/jakkra/wall-led-mail
There is a basic API for controlling it. It's a very limited subset of what WLED supports, for easy integration with for example Home Assistant.
The whole frame is split into many small parts that can be printed on a Prusa MK3. All parts are numbered so you know which order they shall be glued together in.
The "wall connector distancer" glues on to the frame AFTER a LED strip is glued to the frame. Then I just glued all "wall connector distancers" to the wall using 3M Command™ Large Picture Hanging Strips google them.
The author hasn't provided the model origin yet.