Shortcut: use Tailscale to create your own private network and avoid hosting on the big, bad Internet. Otherwise, you really have to be careful on how you protect your services.
Minor downside (or upside) is that you’ll have to install the Tailscale app on each device you want to make part of the network.
This made hosting at home a lot easier for me.
Update: Ah! I misread the post. Tailscale doesn’t make sense for this use case. My bad! 😅
Yeah, you’re right. Bad advice actually. Oops.