BCLib is a library mod for BetterEnd, BetterNether, Eden Ring and other mods from the BetterX team, installed as a separate mod. Other developers can use it in their own projects too.
On its own it provides compatibility between Nether and End mods and datapacks for biome generation, emissive textures (with the _e suffix) and automatic emission shaders for Canvas. For modders it offers a structure features API and world fixers for migrating between mod versions. Built for Fabric, Minecraft 1.19 - 26.3.
Playing BetterEnd or BetterNether? Then your Minecraft server needs BCLib too, and the panel installs it in one click.