How to install the ZBT-2 on a docker container as thread router(The OTBR)

Configuration Matter/Thread
1

I’m thinking about buying a connect ZBT-2 to use as Thread router.
I’m running HA as a docker container under Unraid so I do not have the OTBR add-on.
In step 3 of the “forming a new Thread network with Home Assistant connect ZB-2” it says:

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image1161×436 148 KB

So it looks like possible to install for a HA docker container.
But in step 5 it says:

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image1118×302 31.4 KB

How does this work in a HA docker container? because there is no add-on?
Do I need to install an OTBR docker or so? (I can not find one in the Unraid apps store)

Can somebody point me in the right direction? Is ther a tutorial somewhere?
Thanks?
Or is there an other OTBR and router option to install thread in HA?

2

maybe this thread @ Running OTBR in Docker helps?

3

thanks. Thats a good direction.
A pitty there is no official documentation