OptiFabric

OptiFabric is a mod that adds OptiFine compatibility to a Fabric modded environment.

Installation:

 * 1) Setup a Fabric modded environment (choose launcher to use, add Fabric to it).
 * 2) Download OptiFine from it's official site.
 * 3) Download the OptiFabric mod from Curseforge.
 * 4) When the environment is ready (whether a large modpack or a small test pack, either will work). Add OptiFine and OptiFabric to the mods folder (extracting OptiFine isn't necessary).
 * 5) Launch the game with the Fabric profile and check for the signs of the Video Settings additions as an indication that it was applied/installed correctly). The OptiFabric mod will be visible on the title screen above the Fabric loaded version and OptiFabric will be listed if the user has the Mod Menu installed (optional).



Trivia
A separated OptiFabric version (a 1.8.9 test build) is available for Legacy Fabric.

References:

 * OptiFine Official Website Downloads
 * OptiFabric Curseforge Downloads