In case it’s of help, a common problem I find with guides in general is that they assume I don’t already use Apache (or some other service), and describe as though I’m starting with a clean system. As a newbie, it’s hard to know what damage the instructions will do to existing services, or how to adapt the instructions.

Since docker came along it’s gotten easier, and I’ve learned enough about ports etc to be able to avoid collisions. But it would be great if guides and tutorials in general covered that situation.