I'm also very curious about this, and especially about modding support. :) Is there a website hosting most of the Steam workshop mods, or... is it really a choice between 'most/all the mods' and 'drm free'? I'm really big into mods.
I second the desire to buy it here on itch and support you more, but I'd want the heavy mod support. Does buying it on itch include a Steam key?