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=3826403376
Mods=Headspace
| Workshop item | Subscribers | Declared in |
|---|---|---|
| Bad Head Day3826403376 | 22 | description footer |