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=3827313215
Mods=HiddenHolster
| Workshop item | Subscribers | Declared in |
|---|---|---|
| HiddenHolster3827313215 | 2 | description footer |