Anyone experimenting with varAC ham radio digital mode? It would be an excellent digital mode in the event of infrastructure down event. Has keyboard to keyboard, vmail(like emails over air), beaconing, ability to relay or query others for last heard time of a station. Unfortunately the Vara modem is not open source😞. It's free to use but can do faster speeds (higher bandwidth) with the purchase of the license. But it's the best like this ive seen so far.