So one of the things I have learned about starbound mods you obtain on the steam workshop is that they do not work while you are offline. Workshop mods for starbound can be found in Code: %steaminstall%\steamapps\workshop\content\211820 with a folder for each mod, and the mods are named "contents.pak" If I wanted to, could I copy each contents.pak into here, Code: %steaminstall%\steamapps\common\starbound\mods rename them, and load them into starbound just fine?
I just tried a hard junction method for a DIR instead of a specific file, and it did not work the way I wanted it to (I made a junction to the starbound workshop DIR and starbound did not look inside each mod's folders) however, replacing the junction with just a folder and using copy/keep both files for each .pak, they load in a-okay now.
regarding the junction, starbound only looks 1 folder deep. So really I'd delete \mods\ and leave the junction pointing to \211820\ in its place. You can manually add other mods to this as you please.