Just picking up a conversation a few months ago. I was wondering if Im over complicating this. I think the takeout from earlier conversations were ‘Install conduit’ i think a 12V DC supply + Ethernet + separate conduit for AC power…
but… I also found POE injectors that look like thry take 12v as an input. (So potentially could run things from a battery/ solar supply ) https://a.aliexpress.com/_EG8apjq
Im not sure if they would be suitable though.
Is this Aspirepress?