i think the worst part of those projects is connecting the cube. for the big one it's regular pcb headers badly cut and once in a while the contact breaks and you have to gently tap it for a column to not light up very bright (and possibly damaging things, since it's not pwm'd then)
also it takes like an hour with tweezers to get the 80 pins in place (20 are directly soldered)
@CobaltVelvet oh I remember cube! It looks good
@CobaltVelvet is it weird that the first thing I do when I see someone's workspace is try to understand the character of its organisation?