Semismart Smart Matter Hub M1 + Zigbee

My goal is to connect a IKEA Tradfri button to HA, so I can control devices using the button.
For that I purchased the Semismart Smart Matter Hub M1, that supports Matter and Zigbee.
I am unable to connect the Hub M1 to HA at all. I have been trhough some posts, but I am not able to.
Never the less, I connected the M1 with the Google Home app, using the Matter adding device way. For the developers of HA, as HA uses the Google Matter adding protocol, the fact that Google’s one works and HA’s not, probably there needs to be made some changes.
But, how can I connect a IKEA button to HA using my M1?

Your directions/help is much appreaciated.