This is awesome, and I’m glad it’s something you’ve focused on improving.
Have you explored the possibility of utilising Apple’s Live Speech? It’s accessible AAC for the masses (just as AirPod Pros are now effectively accessible hearing aids for the masses). I know you already allow the use of external AAC devices, but they’re not cheap, so it would be great if you could enable the phone I’m recording the video on to speak the phrase for me instead (it works well over FaceTime). I’ve posted about it as a feature request before:
I’m in the neurodivergent camp, and for me it’s the spoken phrase that introduces the anxiety element which can make the process feel overwhelming, so I always put it off for as long as I can when I upgrade my phone each year.