In favor of using a separate .minecraft directory, this is a python script that enables users to switch between Minecraft Fabric mod versions with ease. Allows for having different mods between versions.
First, ensure that you have FabricMC installed and have run Minecraft on your computer at least once.
IF YOU ALREADY HAVE MODS DOWNLOADED, BACK THEM UP IN A SEPARATE FOLDER
Next, create a folder named .mods in your .minecraft folder.
Then, place your "modpacks" inside the .mods folder labeled by which version they belong to.
Like so:
Finally, run the program and type a number to select a version.
Enjoy!