Couple of questions:
Should my port be 8080 if I want to use Samer’s Sprinkler web app?
Yes. For the sake of clarity, it can be anything except what Apache is using (port 80). With that said, 8080 is a great port to use.
How do I determine ospi is running?
The best way is navigating to the web interface. If you are not greeted by the usual home page of the firmware then it’s not running. Seems like the simplest, most reliable test.