Add it to your server
In your server's .ini file (servertest.ini by default), add these to the existing WorkshopItems= and Mods= lines, separated by a semicolon (;).
WorkshopItems=3831322679
Mods=LX_SPLITSCREEN_SKILLS_IMPROVE
| Workshop item | Subscribers | Declared in |
|---|---|---|
| LX Split-Screen Skills Boost3831322679 | 1 | description footer |