A clue to getting a PPA key and source list to work?
Has a useful reference for setting up WDS and wireless bridging strategies.
Music in hi-res and lossless formats isn't as easy as buying from iTunes. Here are a few sites to help you start your journey.
Cisco Firepower 1010 Getting Started Guide
This video tutorial provide complete information to deploy and configure L2TP IPSec VPN on Windows server 2019.
See also:
https://help.keenetic.com/hc/en-us/articles/360010326360-Connecting-to-an-L2TP-IPSec-VPN-server-from-iOS
https://learn.microsoft.com/en-us/windows-server/remote/remote-access/get-started-install-ras-as-vpn
more graphical and thorough: https://www.snel.com/support/how-to-set-up-an-l2tp-ipsec-vpn-on-windows-server-2019/
Learn what to do if you see the Activation Lock screen on your device, or if you're asked to remove Activation Lock on a device that's offline and not in your possession.
suggested: block smartlock.google.com
Also, Talkmobile is very competitive, on the Vodafone network. They allow tethering (hotspot). Uses a physical SIM, not sure if they ship to the US.
They're retiring the RSS feed soon, so this is the recommended alternative.
Environment variables are a set of dynamic named values that can affect the way running processes will behave on a computer.
Some other examples with specific hardware, that might be helpful in understanding the software stack:
https://davidmays.io/streaming-raspberry-pi-video-via-rtsp-with-gstreamer-and-video4linux/
https://wiki.pine64.org/wiki/PineCube:_Streaming_the_camera_to_the_network