A random question: My place was built with all the plumbing for a central-vac system that I have no intention of using ever. What alternative uses might I have, for this idle series of tubes? Right answers, speculative answers and hilariously wrong answers equally welcome.
C'mon, y'all - "run cat6", what are you doing here in the fedi with an answer like that. The good answers so far include "rapid hamster delivery pneumatics" and "baked beans on tap".
Next set of strong candidates include "the dolby surround-sound of smell-o-vision" and "you could make your whole house into a huge bong."

@mhoye

Gambling parlor. Different rooms different games. You can shunt that money away to a safe room

@mhoye then 800G OSFP Infiniband cables, direct attach copper for the short runs and fiber for the rest
@gabrielesvelto I'll need to figure out how to make money spew out of it first.