The Pico Cube, from SB Components in the UK, is a 4×4×4 cube that runs via a Raspberry Pi Pico and aims to make building a 3D LED cube actually enjoyable. They took out a lot of the variability of the building process by integrating PCBs instead of relying on the LEDs’ wires for the structure. And for those of you that don’t want to deal with soldering (gasp!), they even offer a fully assembled version!
An easier way to build a cube.