After designing this minicase I immediately knew I wanted to apply the same design language to my rack.
It features drawers (front only), cable channels on the sides, rack rails on both front and back, removable side panels, a door with fan mounts and magnetically removable dust filters.
It needs some polishing before sharing the STL, but I think it already looks pretty nice.
Man, one of these days I need to get off my ass and do some designing like this. I've been wanting a (normal 19") rackmount case designed for short depth, front-mount I/O, and hot swap drive cages for a while now, but can't get it out of my head and into CAD (let alone physical reality).