I think I have an alpha version that works, I think. If anybody is interested they can clone it from https://github.com/scottshaffer/OSPi.git
To use the new plugin(s), browse to http://ospi:8080/auto. It does require that you setup the Zone information and Weather settings before working.
I’ve added the ability to simulate operation. It does everything as normal except it prevents OSPi.py from writing to the GPIO pins. This will prevent your OSPi from working at all, not just the automation.
UPDATE: Drip irrigation support is not working yet – it will dramatically over-water those zones if used.