[Feature Request]: Internal/External Base URL options

[grinddking]

Describe what you are trying to accomplish and why in non technical terms
I recently had a router upgrade from Google that does not allow NAT loopback/hairpinning so the external IP is no longer accessible inside my local network. I do not use DNS when entering in local or external IP's for Home assistant and this blueprint. If I'm on my local network I can no longer view snapshots/clips/etc when alerted because of routing reasons.

Describe the solution you'd like
It's not ideal but if an option for an internal URL as well as base URL was added, maybe add optional buttons on the notification to go to the internal IP links?

Describe alternatives you've considered
I know there are ways around this with (imo) complex DNS solutions, my own router, pihole, reverse proxies etc which I don't want to use, or even pay for NabuCasa as well. I apologize if this is not the place to ask.

Additional context
Mainly I'm asking if anyone else has encountered this problem and what their solutions are for this, it's very frustrating Google's older hardware supported hairpinning/NAT loopback but now I am stuck I feel like. Any help is appreciated and

[SgtBatten]

I use something like this to only send me a review gif if I am on wifi (low data plan on my phone).

      {{base_url}}/api/frigate{{client_id}}/notifications/{{review_id+'/review_preview.gif' if states("sensor.pixel_9_pro_network_type") == "wifi" else id+'/snapshot.jpg?bbox=1&crop=1'}}

Perhaps you can use something similar to change the baseurl depending on if you are on yuour home wifi (there is a sensor for specific networks available from the mobile app