in retrospect I think that's a dangerous tag

kubejs/server_scripts/create_picky_wheels/tags.js

@@ -9,6 +9,7 @@ function registerCreatePickyWheelsBiomeTags(event) {
 	event.add('createpickywheels:waterwheels_whitelist', '#tfc:is_ocean')
 	event.add('createpickywheels:waterwheels_whitelist', '#tfg:mars_biomes')
 	
+	event.add('createpickywheels:windmills_whitelist', '#tfg:overworld_biomes')
 	event.add('createpickywheels:windmills_whitelist', '#tfg:nether_biomes')
 	event.add('createpickywheels:windmills_whitelist', '#tfg:mars_biomes')
 }

kubejs/server_scripts/tfc/tags.js

@@ -622,7 +622,7 @@ function registerTFCBiomeTags(event) {
     event.add("tfc:kaolin_clay_spawns_in", "tfc:rolling_hills");
 
     global.TFC_BIOMES.forEach(biome => {
-        event.add('minecraft:is_overworld', biome);
+        event.add('tfg:overworld_biomes', biome);
     })
 }