Make CTAP proxy installation documentation more precise

[timewulf]

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The problem you're addressing (if any)

I'm working on a separate vm-sys template, usable for sys-net-dvm, sys-firewall-dvm and sys-usb-dvm. I want to give the documentation of this to the Qubes User Docs, why I want to write it as exact as possible.

sys-usb-dvm shall be able to work as the backend part of the CTAP proxy

https://www.qubes-os.org/doc/ctap-proxy/

The doc gives a good explanation of the topic, but in the Installation-part it's inexact at a few places, why I can't decide, what steps have to be done on my vm-sys template and what on the work templates.

As it's not completely clear, what parts of the qubes-ctap package are used in sys-usb and what in the work qubes, the following parts need clarification:

In which templates do we need to intall the qubes-ctap package?

• For better understanding it would help to know, what parts of the package are used in which vm?

"Non-default USB qube name"
What are the "appropriate" templates for the systemctl commands in that part?

• Maybe this will get clear by the answer on my first question.

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