This is a repository containing information about the [Essential](https://essential.gg/) Minecraft mod, found through reverse engineering the mod and its server.
You're most likely looking for the [converted cosmetic downloads](https://git.oat.zone/oat/essential-re/releases). If you want a nicer, less formal write-up of what's going on, specifically about cosmetics, you're looking for the [blog post](https://blog.oat.zone/reverse-engineering-minecraft-cosmetics/).