I am pretty sure this has not been suggested already. But my suggestion is a platform where people can learn how to program a chip or in TU a pc where it can do what they want. I could potentially make a http request which means it can do literally everything, of course if used with IFTTT it can do what I did in GMod as seen here: https://youtu.be/1KODwHPRuHQ.
If this can be made then it would take TU and Condos to the next level. Potentially add support for the monitors in the game too for a full security system or what a player desires. It leads to a ton of player generated, creativity which could be used if TU gets workshop.
Thanks for reading this, my first suggestion but I hope it’s a good one!