Great guide, two things though

I notice you mention Prowlarr, I’d probably suggest it and jackett - i ran both for a while then dropped Jackett as all my matches were coming through Prowlarr and its just less admin to add sources there once and have them add to the rest of the servarr apps

Also, you might want to look at https://www.audiobookshelf.org/ - A great plex like app for streaming audiobooks specifically

I wouldnt trust a cantenna or anything like that for wellbing of someone, there’s just too many variables even down to atmospheric pressure which is going to affect wifi signal with something like that. That said, if you can put a rasberry pi at his house, maybe in the house but on the nearest wall to the access point / router, then something like this might be workable

I have a number of these buttons about the house

SNZB-01 https://www.ebay.co.uk/itm/304860775879?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=fzhcellmt0u&sssrc=2047675&ssuid=hddZAAubQsK&var=603868193820&widget_ver=artemis&media=COPY

I have a RasPi running https://www.zigbee2mqtt.io/

I have one of these flashed as hub / bridge https://www.ebay.co.uk/itm/203668277433?var=504097716478

Then just some python connecting to the mqtt and responding which I’d be happy to provide a copy of if you decide to go down that route, just let me know. Could have it sending a pushover notification or something along those lines quite easily

This sounds amazing, definitely going to add this to my servarr setup next few days.