The Reachy-mini is a lot of fun. It really is like having a useless Starwars droid. Some tips: Can't set it up? At least one feb batch (including mine) got botched and needs to be reflashed. Speaker too weak? Can hack apps with a gain, helped a ton.
Audio gain hack that works in the conversation app:
AUDIO_GAIN = 2.5 # 250% volume
audio_frame = np.clip(audio_frame * AUDIO_GAIN, -1.0, 1.0)
robot.media.push_audio_sample(audio_frame) #put in front of this line