

It definitely can be disabled post-install but is much simpler to install without it at install-time, and has the added benefit of not pulling 2-5gb of other things that won’t be relevant to your use case. It’s not that the disk waste is that big of a deal, but any issues you run into will be that much easier to troubleshoot with fewer moving parts.



If caddy is acting as a proxy for anything, you should not need to forward that port externally. Local host firewalls allowing traffic on your local network is sufficient.
Depending on your physical host layout you may be looking at an issue with nat reflection.
You have not given us enough about your topology to assist in troubleshooting.