Is there a tutorial on how to format a post on gamedev? I can't seem to make the tags "media" and "rollup" work and I'm lucky that I have found them on google because I don't know where to search.

I just found out that just copy/pasting a youtube video url makes it work but there's a little tweak to do: if the video is part of a playlist, it must be removed from the url.

Thanks in advance! :)