Finalizing PCB design for Geeksy tonight, and probably can get working product manufactured next week through our partner in Shenzhen.
The main challenge here was isolating speaker to prevent its higher voltage messing up with either processor or microphone, also almost forget to put both usb power and taishan pi power through the same diode/ldo which otherwise could cause burning usb port if connected to both (which happens if you want to use it as sound device by plugging in to your computer which is natively supported by RP2040 through tinyusb library) and there are still some safety issues here but overall design looks really promising and I can't wait to get my hands on the final product.