I'm reasonably close to the point where I would try to trigger hard mode, and I'm making some preparations. As far as I understand, once I trigger hard mode, corruption and hallow will spread quickly.
I'd like to prevent my home base from becomnig corrupted/hallowed, what do I have to do to ensure that? I've created an air gap around the home, but is that enough? From what I read there are also enemies that can spread corruption, how can I prevent those from infecting my home?