Any updates @jnpetersen? I'm curious what your solution was.
Our stake originally worked toward a solution originally proposed by @technoSwiss, with some modifications...
(1) We setup 1 youtube channel for each building in our stake, plus the default channel for our stake gmail account. So our one gmail account has 5 youtube channels that cover our Stake + 4 buildings.
(2) We simplified the process by making our videos public and sent a link to the channel for the building. When live, the video shows up there. We delete them later. This means we didn't need to automate updating links on a webpage, we only needed a single link for each building. Wards would simply watch the channel during their regular meeting time. We also didn't need the code for sending SMS messages
(3) We worked toward a 'control' box that had a button (for soft power on/off of Pi), a couple switches (one for start/stop broadcast, and one for live-video/static-pic+no-sound for sacrament) and LED indicators for each control.
We wound up bailing on the Pi's due to poor internet in two of our buildings, and only one person capable of modifying the code for all of it. (If he were "hit by a bus", or moved out of the stake, the support model falls apart)
We wound up standardized on using OBS with laptops. We used the webcams and USB audio capture devices that we originally purchased for the Pis, which work great with the laptops. We leave the webcams, and audio capture devices setup all the time, and simply plugin the laptops prior to streaming. The plus side is that each ward in our stake has provided an assistant stake tech clerk, and they're each now trained how to use OBS to run a webcast, which will come in really handy to assist the STS during stake conferences.
For those wondering what hardware we wound up using... each building has:
(1) A laptop/computer capable of running OBS (OBS is free, laptops can be borrowed from members, or if purchased are ~$400-$500 each)
(a) A USB3 hub with ethernet adapter - new laptops don't have an rj45 connector anymore (
https://www.amazon.com/dp/B0178HOTOU ~$16)
(b) A 20ft Ethernet cable - you may need longer/shorter (
https://www.amazon.com/dp/B00GBBSTEG ~$14)
(2) A 1080p USB webcam with h.264 (
https://www.amazon.com/gp/product/B088TT8HVY ~$48)
(a) A Microphone stand - in case you don't have a spare one laying around. (
https://www.amazon.com/gp/product/B002PAW6AU ~$26)
(b) Microphone stand to webcam adapter - allows you to mount your webcam on a mic stand (
https://www.amazon.com/gp/product/B07RGJFR85 ~$11)
(3) A USB digital audio capture card (
https://www.amazon.com/gp/product/B019T9KS04 ~$20)
(a) A 25ft Audio extension cable to pull audio from Chapel out jack - I suggest getting longer than you need, ours are shorter than I'd like (
https://www.amazon.com/gp/product/B01CNAV2YW ~$13)
(4) A Power Cord - recommend a windup variety like this one (
https://www.walmart.com/ip/16489602 ~$17)
Chances are you already have some of that equipment already. But, if you have to buy everything, it's around ~$162 per building plus the cost of your computer/laptop. Meaning you should be able to purchase everything including the laptop for less than the cost of a single Teradyk Vidiu device.