I’m now set up to run my trains using JMRI. It’s a cool Java-based interface that allows you to send commands to a DCC command station (like my NCE setup) to control trains. All it took was a $30 Raspberry Pi computer, a $10 WiFi dongle, and a $10 USB-to-serial cable.
Here’s the (neat!) shell of the layout Pi:

Here’s the desktop: