I'm not sure why you would have issues with duplicates from that. There are no variable declarations in any unren files, and you should only have issues with duplicate variables if they're fully declared in multiple places, not just having their values modified. Unren .rpyss only have renpy commands, which don't affect any declared variables and only modify settings that are available to any game built with the engine. I'm sure no dev wants their game modded unofficially and have people come and complain as a result of issues with a process they don't endorse, but nothing in WillTylor's game conflicts with any of the renpy commands in the unren files, as of the last version. Again, I've yet to look at .07, and like Will said it's a leaked prerelease so some issues are expected anyway.