I don’t know for sure… but my instinct is that NAT reflection is moot in that case, because your connection is going out past the edge router and doing the DNS query there, which will then direct you back to your public IP. I’m sure there’s somebody around that knows the answer for certain!
If your router has NAT reflection, then the problem you describe is non existent. I use the same domain/protocol both inside and outside my network.
I like Photostructure as a way to browse my photos. It does logical deduping, and automatic organization of your photos (if you want it to). Like some others mentioned in this thread, it’s a very young software, but the developer is very active and transparent about the progress.
Edit to add link: photostructure.com
Tangential point: if your “smart home” can be shut down by a third party, then you aren’t Smart Homing correctly.
Influxdb + grafana for me! Good stuff!