ArchangelD

QuadHotbar adds up to four switchable hotbars for NeoForge 1.21.1 and Forge 1.20.1. It is a convenient MultiHotbar port designed for comfortable building and managing large item sets.

ApertureMapsLib — a Forge 1.12.2 library that lets you use large, non-square textures safely in the vanilla atlas.

An addon that gives LittleTiles the precision, animations, and elevators 1.12.2 always lacked. Built by a builder, for builders.