Please don’t thank me. It is we Sydney walkers who should be thanking you for creating something to track our walking/running and for investing time thinking of how to improve an obstinate city on the far side of the world!
I will come back and provide another response addressing your specific questions later today. I have to do a little work to prepare for uni in a couple of hours (and leave enough time to walk part of the way there to create some more purple lines on my miniscule life map).
Hopefully other Sydneysiders might have chimed in too.