Thirst Was Taken
Thirst Was Taken adds a thirst bar for players. Townstead extends it to villagers as a thirst backend.
The integration is identical to Thirst Was Reclaimed, the maintained continuation of this mod. The two share the thirst mod id and cannot be installed together; Townstead detects which one is present automatically. See that page for what villagers do and how backend selection works when Legendary Survival Overhaul is also installed.