AzureLib represents a branch derived from Geckolib 4.x, serving as an animation engine tailored for Minecraft Mods. It boasts various features, including support for intricate 3D keyframe-driven animations, over 30 different easing functions, concurrent animation capabilities, sound and particle keyframes, event-based keyframes, and numerous other functionalities. Currently, I'll focus on maintaining and supporting AzureLib; no help will be given to Geckolib.
You can find the AzureLib Wiki here: https://wiki.azuredoom.com/