I find this project interesting: https://neo900.org/ https://neo900.org/ Everything will be open-source, apart from the modem. But they do disconnect the modem

I find this project interesting: https://neo900.org/ https://neo900.org/ Everything will be open-source, apart from the modem. But they do disconnect the modem from any direct input like audio. Have a look at this presentation: https://neo900.org/stuff/cccamp15/ccc2015talk/talk.pdf https://neo900.org/stuff/cccamp15/ccc2015talk/talk.pdf