I did not find anything on this forum about the use of the Matrix Creator (or Voice) with Gassistpi. The reason to choose Gassistpi is that it allows for a lot of additional features (including custom wakewords). I am currently trying to get this to work with the help of the creator of Gassistpi (shivasiddharth): https://github.com/shivasiddharth/GassistPi/issues/1063.
It seems that one of the problems is is that Gassistpi needs access to the mic array from multiple programs / threads. Any help on how to approach this is appreciated.