Hi @SpaceDaddy, welcome to the Community! I’m glad you decided to try Qubes OS!
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There are some existing discussion about it, e.g., this: How to combine sys-usb with sys-net.
It would be helpful if you told us exactly what is outdated in the docs. Also:
This project is very much alive, see the work being done in Qubes Issues. Also, see discussions on this forum. Apart from that, the project does suffer from the lack of volunteers.
You can install templates, or clone an existing template using Qube Manager or qvm-clone
and modify it to your liking. You can also use Qube Manager to create a new AppVM based on any existing template. If you have a particular question on how to implement something, feel free to ask it here. See also: Command-line tools | Qubes OS.