No need for any kind of database because everything happens in memory...
Just build the solution (restore all nuget packages) and set multiple starting projects:
- Nsb.Client (website)
- Nsb.Dispatch (the dispatcher of the orders)
- Nsb.PriceCalc (request/response pattern, representing synchronous communication)
- Nsb.Saga (coordinates the workflow)
- Nsb.Sales (simulates some kind of a sales departemnt)
IMPORTANT: MSMQ (under Windows features activate / deactivate) should be activated!
That's it!