Minecraft Unlocking System Mod

I need a mod for Minecraft that introduces a unique unlocking system based on out-of-game activities. This will require the use of a menu to manage and unlock new gameplay mechanics.

Key Requirements:
- Develop an unlocking system tied to external activities
- Create a user-friendly menu for managing unlocking items and blocks and even mobs!
- Integrate seamlessly with existing gameplay mechanics

Ideal Skills and Experience:
- Proficiency in Minecraft modding
- Strong programming skills (Java is preferred)
- Experience with UI/UX design for in-game menus
- Familiarity with Minecraft's gameplay mechanics and modding community

Please ensure that the mod is stable and does not interfere with existing game functions. Looking forward to your creative solutions!