On the Steam beta branch you can now download v1.08, which lets you upload and download mods from Steam Workshop. This is an opportunity for modders to test workshop integration before it goes live for players in general.

Known Issues:

• If you’ve been using Modding Preview 1, you’ll initially see an error about not being able to read user settings, but it should behave correctly after that.
• Secondly, if you’ve written metadata for your mod into an ini file, it will now need to be named ‘metadata.ini’.
• The upload form can’t cope with unicode characters yet.

Please let me know if your mods behave any differently after a trip through workshop and I’ll look into it. And if you’d like to get into making mods, you can learn more on the wiki.