[NEED HELP] setting up server with custom maps

hi,
I'm trying to set up a server with some maps from https://xonotic.co/ or http://dl.xonotic.co/. the server itself is working, my friends can go on it and it works fine. but I can't figure out how to add the custom maps.
I think you have to do something with sv_curl_defaulturl "{url}" but I'm not sure.
would anyone be able to help me? 
thanks!

You have to put the pk3 files into you userdir. On Linux that is ~/.xonotic/data/.
Inside the data directory you should also place your server.cfg configuration file.
Clients have to download the used pk3 files from a HTTP server, check https://gitlab.com/xonotic/xonotic/blob/...wnload.txt for more info.

If you got all your maps from dl.xonotic.co, then you can just set "sv_curl_defaulturl http://dl.xonotic.co/" in server.cfg, and it should work. No need to have a web server.