121jar —a timecode. A goodbye. Because after 1.2.5, then 1.3.1, then the endless updates, this mod stopped working. The file remained. An unopened time capsule.

Remember to always verify the source of the file, remove conflicting mods, and double-check your Minecraft version. With the step-by-step guide above, you should now be able to install, configure, and troubleshoot this mod with confidence. Happy crafting—and may your cape flutter proudly in the cubic winds of Minecraft 1.21.