Hello, from the Downloads section you could access the GitHub repositories for the different parts of the project, but I just saw that the plugin I used for that has unfortunately stopped working. Below are the links to the project where you can find all the source files:
https://github.com/AngelLM/Thor
https://github.com/AngelLM/ThorControlPCB
https://github.com/AngelLM/Thor-ROS
https://github.com/AngelLM/Asgard
I will try to fix it as soon as possible. Sorry for the inconvenience.