How do I get players to download files from gmod.org

Or any other kind of custom file, I’m currently trying to make it so my dedicated server has a youtube player everyone can see but have no clue how to.

Help would be appreciated.

Don’t they automatically download all your server files when joining the server?

Tell them to stop being nonces and download what’s on the damn server.

Don’t you have to put the add ons into a file on the srcds folder for the dedicated server?