Community networks are pretty common in rural areas in other countries. My favorites are guifi.net and b4rn.org.uk. They both use lots of fiber running through farms.
We tried repeating LinkNYC kiosks a few years ago but it wasn't reliable enough, making it too difficult to support.
We have instructions for a DIY connection on our website and a channel on our Slack where you can ask other members about problems. The DHCP lease tends to go dead every couple of months and we have various things to try when that happens.