This tool connects to Run 8 the same way as an external dispatcher application and displays information about all dispatcher-visible trains in the world. It’s not a full dispatch application, there are no controls, it is purely for displaying information.
The program can be downloaded from GitLab releases or GitHub releases (grab the .exe file). The .exe file can be saved anywhere and run; no installation is needed. It can be run on the same computer as Run 8 or a different computer. You must enable the “external dispatcher” switch in Run 8 before connecting.