Yup. It was a session at the HOPE conference in NYC this past summer. These are ground stations for the TinyGS project. https://tinygs.com
Discussion
I can't open that link. Probably because I use Tor by default, which I'm not changing. I'm glad you're spreading the knowledge, though. It looks like something I'd enjoy

You should still be able to check out the GitHub. https://github.com/G4lile0/tinyGS
This is interesting. I see the esp32 is supported - I've been wanting to do something on one of those. I'm very new to building, but I like it