I have put OmuxNET on github under MIT license. See:
It is a Python3.4 implementation of the Optomux Protocol for Linux serial ports. I use Mint 17.3. Haven’t tested on other flavors of Linux. I mainly wrote it to gain some proficiency in Python and learn some Linux serial stuff, and because as a retired software engineer I am tired of working on the house.
On my machine I can launch it in a bash shell as:
python3.4 -i OmuxNET.py
Refer to the ReadME.pdf or look at the end of OmuxNET.py for the main section to see a quick example of how to run it.
Now I will move on to Mistic as I have time.