Get the workshop content: https://steamcommunity.com/sharedfiles/filedetails/?id=2143071959
The addon needs a lot of work. The codebase is messy, somewhat broken, and it's overall pretty featureless. I'm making it available here in the hope that the community can work together to make it into something better.
I wrote this code years ago, it's hard to even look at it without vomiting. I also don't have as much free time anymore, so gathering the time and motivation to do this is difficult.
Gmodstore link in case you want to see the screenshots, feature list and store page (may be outdated): https://www.gmodstore.com/market/view/7261