Anyone know how to export a mod?
Also how do you make factions and puppets?
To export the mod, you just go to the mod's page; under your account, or by clicking "View Mod" when editing your focus tree/events/etc.
Then there is a button at the top which allows you to export the mod.
Factions/puppets aren't currently doable with the current tools on the site, you would have to do this after exporting.
It's quite outdated now, but this video should help when it comes to what to do with exported files: https://www.youtube.com/watch?v=dDT9oZwl5zU