I believe the Miniatur Wunderland in Hamburg uses Delphi to automate their 1000s of model trains and hundreds of thousands of lights.
The software on-screen: https://youtu.be/kySAQvU51CY?t=137 . It controls lights, cars, and recently they had the idea of using "AI" to actually let 20 mini F1 cars race each other on a magnetic track, with each car using a CPU core of a 32-core machine: https://youtu.be/3ujaGUFfgC0?t=187