ventilators allows you to build ventilators (suprise!) which push entities in certain directions! A Batwing dropped by bats will be needed to empower an observer into a ventilator.
Current file for Minecraft 1.14/1.15
1.13 (unsupported), 1.14/1.15 (stable) and possibly for even later versions on the master branch.
This is the 1.14/1.15 branch. Switch branches to get to the respective versions.
Performance Impact 🔴2/5