Yeah...

I tried to make an open source radio system like LoRa before LoRa existed, but I mostly failed to deliver on my kickstarter. :-/

I did make a 915/868 MHz frequency hopping radio protocol that is open source, as well as ARM powered hardware to drive it, but it turns out everything I wanted to do was way more work than I realized.

Bummer that LoRa hardware is proprietary, but I suppose so was the cpu and radio chip I used. Would be nice to get some open source digital radio chips!