💧waterSourceConversion/onlyInWetBiomes

From a Fabric Discord request on a different version

Water sources being created in an ocean biome (right) vs not in a beach biome (left)

Granular Gamerules lets you filter water source generation by biome, when the vanilla gamerule waterSourceConversion is true.

Command: /gamerule waterSourceConversion/onlyInWetBiomes

You can specifiy your own biomes in the #granulargamerules:water_convertible biome tag.

By default, this is everything in the #minecraft:is_river , #minecraft:is_oceanand Fabric API #c:is_river and #c:is_ocean tags.

🌋lavaSourceConversion/onlyInNetherBiomes