Optolink component not available (error)

ESPHome
1

I am trying to use the ESPHome Optolink component ( Viessmann Optolink — ESPHome) by including the following in the yaml file of my ESPHome device:
optolink:
protocol: KW

Unfortunately, I get the following error message. Any idea what I am doing wrong? Probably something stupid. Thanks.
image

2

Include your full YAML file (as text and properly formatted).

But your ESPHome link seems off. When I do a Google search for that component (or search the normal ESPHome website), I can’t find it.

3

You point to preview docs, has this actually been included in esphome yet?

4

oh, yes indeed, it is still in preview.
Does it mean that we cannot use it? I hope/expect that a beta version can be used. The documentation is very mature.

5

You’ll have to explore GitHub.

6
7

Thanks I will read through it.
I also found ESPHome Optolink · openv/openv Wiki · GitHub. But how can I integrate this in my script? This link states the following, but it does not work. I am not so familiar with integrating github in ESPHome…
external_components:
'- source: github://pr#4453

8

There are docs