This is the way

I don’t quite understand why you are paying someone else to host your data? At that point, just use one of the major cloud services…

That’s why I finally gave up after nearly 3 decades of running my own email server. It’s just stamping out fire after fire and my time became way more valuable as I got older.

Yes, Hexbear is highly customized. Beehaw is o believe. Not sure what else

The fact that you said “my router doesn’t appear on file explorer” tells us everything we need to know about your skill level. You don’t know the first thing about “protecting this open port” and you aren’t qualified to assess the security risks of what you are trying to do.

My go to is Roku.

Cheap, always works, compatible with everything

I use Pingvin to share one off files for that purpose. It’s super easy to set up and works great.