Just a quick update to say I have updated the Hackaday description and components list (added the I2S Audio Phat components). Also, although I said I would be ordering components, I have started designing a 'quick and easy' BME680 and LIS3DH breakout and want to finish that before ordering components. Also, I don't know if I am going to finish my CAM-M8 breakout before ordering components or order the CAM-M8 components at a later date as I really want my GPS breakout to be usable first try (got to stick to loads of design guidelines with copper pours etc.) and possibly saleable if I decide to sell it (not really sure if I will yet). As well as all that, I am designing a SAMD51 dev board/breakout (did I not warn you I am breakout obsessed?!) as I will probably end up using an Arduino chip to easily get input from lots of buttons. I know the SAMD51 is overpowered for my usecase but a powerful chip with lots of additional features (see the list here - https://www.microchip.com/wwwproducts/en/ATSAMD51P20A) is means anyone can mod Pi Portable Recorder and practically add whatever they want with the best of both worlds (Pi and Arduino). Let's just see if I can fit all these sensors, audio chips, PCBs, resistors, capacitors, screens, battery and whatever else in a pocket sized recorder!