I am following this guy for a year already, take a look, it's full DIY:
https://www.youtube.com/watch?v=N-iY-ic1KNk
I believe this device connected to a RPi Zero W with a bunch of CLI apps like VIM, SimpleXChat, XMPP client, IRC client and so on, we might be speaking of a new era of cyberdeks! Plus all the SDR dongles you can plug into your RPi.
This is awesome!
I noticed the sponsor of his video is the same sponsor of Naomi Wu (Sexy Cyborg), which disappeared last year after being threatened by the chinese officials.
His video has the same vibe of her dyi videos.