No more Infinite Water

This simply prevents water creating source blocks outside of river, ocean, or deep ocean type biomes.

To configure it, simply add or remove biomes to/from to the finitewater:is_infinite_water_biome biome tag. by default that tag inherits biomes from the minecraft:is_river, minecraft:is_ocean, and minecraft:is_deep_ocean biome tags. Also the config provides a boolean that allows you to turn the infinite water biome tag from a whitelist to a blacklist, by default it's a whitelist.

I have not tested, but this mod can probably be used on server side only.

Also this mod has jars for both fabric and forge.