ReSpeaker Lite microphone and speaker configurations

@PJ_Glasso How did your further testing of the Respeaker Lite go?
Is anyone able to share any information on how to correctly setup the Respeaker Lite with a linux system (Raspberry Pi Zero 2 W running Debian 12 in my case) over I2S?
I have the audio device working for capture and playback (thanks to Ray on another thread), and the AEC does seem to work on a basic test (talking while playing a recording message). But when I try to use it in a two way audio system (either diy with GStreamer or standard SIP apps) I get terrible AEC. I would like to adjust some of the settings on the Respeaker device i.e AGC etc. but not sure if this is possible?
Any feedback or links to the relevant info would be appreciated thanks.