I had pretty much the exact same idea at first, living in the middle of nowhere. I had someone contact me to join them in the town and I pretty much declined (with respect ofc). We talked about it a couple of times as I thought about if I could still help them without being part of the town itself and we basically came to the conclusion of that I would be welcome to freely enter and leave the town as much as I liked, and in return I would gather materials and help anyone that may pass my plot in their travels with slaying some creatures that i would then loot for materials to trade.
Unfortunately, the person that envisioned the town, which was called Duath, @LilCassiopeia has deleted the existance of Duath now, due to some issues he is trying to work out over these next couple of days. Basically, to live as a hermit, you will need to trade goods for services, or goods for money and then money for services (like manufacturing gear). You won't be able to play 100% solo if you want to be able to do everything... (excluding the fact that you wouldn't be trying out city life if that was the case) You will still need to make at least a few connections.
Also, I believe not all of the content is for solo players. There are a few locations on the map with extremely high mob numbers that would very quickly overwhealm you if you are on your own. There may be a few places where you would want to go in the future, where you need to either hire some people to help you, or be allied with a guild that is willing to have you tag along If you are very careful and well prepared, you could probably manage to get a bit of loot if you are solo though.