This is something you can do with the goTenna Python SDK via a USB cable connection to your goTenna. The sample.py app is a good place to start. It works great on a PC or Mac. Is that what you mean?
It also works from a single board computer (eg. Raspberry Pi, or similar). I’m working with Tourmaline Wireless on adapting sample.py to act as a personal gateway device that can relay messages between a SMS network and local mesh network. It might be of interest for disaster communications to connect areas without power to the outside world: Building a stand alone RPi based goTenna to SMS gateway - #3 by rmyers