Check the Releases to see what you can download.
If there is a Release you want, then you just need to download the HeschyStarGate.zip file from this Release.
Note: I know that my english is not really good.
I am trying to develop the Addon, but Blenders error-messages aren't verry useful and it is stressful to get a running file, so I am currently not working on this until 20th Feburary 2022. Thank you for reading this.
Most nodetrees have been created by hand.
Now they are being recreated via Python.
The Project is currently not finished.
Here you can find more information, because that is the Official Homepage of this Project.
It is a Github-Pages Website.