Any significant differences from Meshtastic other than a console PC app?
The author of this blog post is the developer of Reticulum, which is a complete network stack and full-fledged alternative to TCP/IP. (https://reticulum.network/). Reticulum is capable of operating over not just LoRa, but bluetooth low energy, standard WiFi, Packet Radio, and overlay networks like Tor and I2P.
Constant key exchanges, message acknowledgements, and large payloads over standards like AX.25 or FT8 would quickly congest a given frequency using off-the-shelf analog equipment that requires audio mod/demod. But it would probably work fine for more traditional, client-server traffic or simplex traffic.
It seems much better suited to digital traffic in the 900mhz+ range a-la Meshtastic or Arednmesh.