With the NanoSound One, you can transform the Raspberry Pi into a versatile audio system with an integrated Hi-Fi DAC. The NanoSound One supports multiroom, Spotify and Tidal among other music streaming services.
https://www.notebookcheck.net/Raspberry-Pi-Turn-the-popular-single-board-computer-into-a-cheap-Hi-Fi-system-with-multiroom-network-streaming-Spotify-and-Tidal-support.469104.0.html
Putting a magnetic lid that close to these systems is a recipe for disaster.
Why ?
Some people don't understand magnets, and therefore think that they would somehow interfere or cause issue.... Which ofcourse is o ly the case with certain older technologies like magnetic hard drives or crt monitors.
There's no issue at all having a magnet near a raspberry pi.
Bit flip anyone? ;D ;D ;D