Download: Geckolib (important) Here

GeckoLib. ... A 3D animation library for entities, blocks, items, armor, and more! CurseForge Home · bernie-g/geckolib Wiki - GitHub

What are you playing on (e.g., 1.21.1, 1.20.1)? Download Geckolib (Important) Here

Home. ... GeckoLib is a powerful animation library for Minecraft Java Edition available for all major modloaders. Includes out-of- GeckoLib - Minecraft Mods - CurseForge GeckoLib

If a mod asks for GeckoLib, it will likely not function (or crash the game) without it. Download Geckolib (Important) Here

Move the downloaded .jar file into the mods folder within your Minecraft directory.