Why does BeamNG need an external mod manager? Why not just use the built-in in-game manager? BeamNG.Drive's in-game mod manager is good for a basic manager; however, it is lacking nice features such ...
In order to run this your self you will need to download this repository and zip the lua, scripts and ui folders up into one zip file so you have something like: BeamNG-MP.zip ├─ lua/ ├─ scripts/ └─ ...