Actors seems like an interesting model to increase reuse in embedded systems by sharing concurrent components between users, So i wonder why there isn't a collaborative community doing exactly this ?
As for garbage collection - that's a problem, but maybe with the right dual core mcu with 400Kram(a $2 esp32) and some fancy concurrent garbage collection this will work well ?
Also at first i'm not sure this should be aimed at the embedded community, more towards the maker community.