[SOLVED] Connecting 433 MHz remote to Homey Pro (2023)

Naturally I managed to make myself look stupid by finding a solution within an hour after posting.

In the new Brel app you do not connect the roller blinds, but choose the remote. Even though the image is different, it allows for pressing any button to connect and to be recognised. You just have to make sure you have the remote in the right channel before pressing a button.

My life is complete now.