Hassio and cun/cul and homegear

Today i have flash my max cube with CUL/CUN firmware.

I can not find how i can now learn devices to this flashed cube? Also what i must install on hassio (rpi3)

I have try to install homegear (https://github.com/yeah/hassio-addons ), but when i clikc install nothing happen.

What must i do to connect max cube (flashed) with hassio?

Thanx for help

Or if maybe someone know how i can pair valve thermostat with cube that have flashed cun/cul firmware?

you have to install a software as homematic manager for example
you have all the information there : Converting a MAX! Cube to CUL/CUN to use with Home Assistant