It’s not a new idea. Horn and Hardart restaurants in NYC where way ahead of their time.
I loved plinking my coins in the slot and opening the glass door to pull out anything from meatloaf and mashed potatoes to apple pie. Yum.
The bet Horn and Hardart was nearby Radio City Music Hall.
https://www.youtube.com/watch?v=ZrbyqUOObdU
A look at the Horn and Hardart Automat and its Legacy.
3 minutes long