Just like TaterLib, but with half the fat!
In other words, it's a collection of abstract modloader utilities to make cross-platform development easier.
Base Metadata -> Base Core -> Base, Metadata Muxins -> Metadata CrossPerms -> Core, Base, Metadata, Muxins BrigadierGeneral -> CrossPerms, Metadata, Muxins
An abstract API for querying modloader metadata at runtime
A mixin plugin and annotation set that allow you to apply mixins based on the platform, loaded plugins/mods, and minecraft version
An abstract permission query API that supports all major modding platforms
A cross-platform command registration API, primarily focused on exposing brigadier and wrapping platform-specific command implementations.