Hey, just to let you know that the mod will need a version bump for 2.1 (which is out now on experimental), no breaking change expected. Also likely to be the last big patch for Factorio and so the last update needed for this mod. Again, thanks for making this simple mod!

Thanks for letting me know. Bit of a rewrite, but should work now.

Finally managed to have all my mods updated and got to actually test it out.
Got an error upon trying to craft something; From my limited mod knowledge, it seems like get_quick_bar_slot has been changed to not necessarily return a nil value. Simply checking if "filter" is nil should fix the issue, on line 17 :

if slot == nil or slot.filter == nil then

I did that change and things seems fine. I'll let you know if something else come up (hopefully not)

Thanks, I made the change.