Arc Reactor Backplate for Arduino storage

Made a Backplate that supports an Arduino Nano Every for the very nice Arc Reactor from ShareAHack, found here: https://www.thingiverse.com/thing:4544459

It features a 45x20mm "hole" for the Arduino (or other microcontrollers in that format) and also a 4mm deep circle on the outside to get my too long cable out of the way. There are also two lines connected to the middle part, to make the cable management a bit easier.
not my best Design but it works.

On the upperside there are two dents, 0.5mm deep, used as a help to align my two LED Rings.
screwed the Arduino right into the base with two m1.5x6 screws.

English isn't my first language so please have mercy if there are any mistakes.