Oh for sure. I would only do so if you have a proper firewall running, a DMZ set up. Among other precautions.

Recently set up caddy myself, very straightforward setup. You essentially just edit one config file and point your domain host to the right place and are good to go. Took me by surprise actually.

As others have said it is based on instance. I get why some have instances have the restriction though.

A word of warning on Linux on Mac though. Oftentimes there can be weird quirks with power management and suspend/hibernate. For a server though I guess that point is moot.