google/or-tools ? reverse-engineered prompt

Build me a simple project that shows off Google OR Tools in a way a normal user could understand. I want a small app that can solve a delivery route problem and a basic scheduling problem, then print the best result in a clean readable way.

Please make it easy to run from the command line, with a few example inputs I can try right away. Include clear sample data, helpful comments, and a short README that explains what the app does and how to run it. If you need to look up current docs online, go ahead and do that.

I’d like the code to feel polished and practical, not like a toy demo. Keep the structure tidy, make sure it builds cleanly, and include at least one example for routing and one for optimization or assignment so I can see how OR Tools is used in real life.