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=3153026859
Mods=ShadowsHouseAddon
| Workshop item | Subscribers | Declared in |
|---|---|---|
| Shadows House addon3153026859 | 9 | description footer |