In this tram depot sim you are the depot master.
You have to sort the arriving trains, service and repair them after their needs in the right order, so they are ready for departure in time.
This sim is different from many others as the only time that counts is the departure time; the rest is up to you.
Extensive historical and functional documentation in the readme file. There are also some spoilers, if you get stuck.
A prerequisite for this to work is the new functionality MDT (minimum dwell time). You must therefore have at least version 2.23.0 of Rail OS.
Download it here