I decided to move this section up earlier than originally planned. The reason is straightforward: once we enable external access, any additional containers running essential services will require at least some network reconfiguration. It makes more sense to address this now, after our Pi is set up and our LAN DNS communication is secure.

Read more at https://medium.com/codex/part-4-how-i-run-my-entire-digital-life-on-a-raspberry-pi-make-it-accessible-from-outside-689f2b85edb8