This guide is intentionally compatibility-first. Use the exact project documentation for file placement, version numbers and dependencies whenever it is available.
Quick compatibility check
Confirm the target game, exact version, loader or framework, required dependencies and a current backup before making changes.
Verify 1.20.1 explicitly
Use a release page that lists Minecraft 1.20.1 rather than assuming a nearby version will work.
Confirm the loader
A 1.20.1 release may be available for one loader and not another. Match Fabric, Forge or NeoForge exactly.
Check required libraries
Version-specific releases may depend on APIs or core libraries that also need 1.20.1-compatible files.
Back up worlds
Before opening an existing world with a new storage mod, make a copy of the world folder and important configs.
Related Backpack mod guidance
Return to the main download page before installing, and keep Minecraft-specific search results separate from the supplied external package unless the project itself confirms the connection.