This is a 3D printable case for the Pimoroni Hyperpixel4 Square Raspberry Pi display.
I made this for viz1090, but the only non-standard thing about the setup is I've sized it for a Pi with the USB and Ethernet ports snipped off, which makes the stack about half as tall. Hopefully someone makes a CM4 compatible display like this eventually.
There are pockets on the back for a 60mm x 10mm x 3mm bar magnet, which you'll have to glue in (I tried making little retaining tabs but they kept breaking off... those magnets are strong).
This repo includes the original Blender file and a print-ready STL (units: mm). I tightened up the tolerances by trial and error so you may need to adjust depending on the characteristics of your particular printer.