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=3819475928
Mods=BuildAbove
| Workshop item | Subscribers | Declared in |
|---|---|---|
| Build Above3819475928 | 8 | description footer |