Good job, y'all. Small, powerful, well connected, convenient to use. I think there's a chance you'll hit it out the ballpark. What you need now is shields, lots

Good job, y'all. Small, powerful, well connected, convenient to use. I think there's a chance you'll hit it out the ballpark. What you need now is shields, lots of shields, and libraries, lots of libraries. For Arduino there's a library for any sensor under the sun - you'll have to try and cover at least the most popular things out there. You know what's missing from the site? As a long-time Arduino user, I've learned the value of knowing in advance, very clearly, the number of digital and analog inputs and outputs on any device I plan to use. E.g., right now I'm wrestling an Arduino Mini, trying to fit all the digital pins I need for the OLED display, the tachometer sensors, the temperature and humidity sensor, and the various LEDs and control buses. It's probably gonna work, but it's a close race. I'm sure that information is available somewhere for your device, it just didn't jump at me when I looked at the site. Maybe you should make it a bit more prominent.