The phrase Alex Caves mod Fabric can lead to valid community port projects, but it should not be confused with the original release identity. The original public project is centered on Java 1.20.1 with Forge and NeoForge listings.
Original support baseline
Use the original project’s 1.20.1 Forge/NeoForge support as the baseline. If a file says Fabric, it is not simply another original loader build unless the original maintainer explicitly published it that way.
Community ports can be legitimate
A community-maintained port can be a real, useful project, but it has its own maintainer, dependency rules, update schedule and support channel. Evaluate it as a separate project instead of assuming original-project support applies.
Dependencies may change
The original project lists Citadel as a dependency. A Fabric port may replace, bundle or add dependencies. Never copy the dependency list from an original Forge guide into a Fabric setup without checking the port’s own instructions.
Server compatibility still needs matching files
Even if a Fabric port supports client and server use, everyone connecting to a content-modded server generally needs compatible mod and dependency versions. Keep loader families consistent across the instance.
Best installation strategy
Create a separate profile for the Fabric port, install only the stated dependencies, launch once without extra mods, and test a temporary world. Add the rest of a modpack only after the base port works.
Next step
Return to the main compatibility section before downloading so you can compare edition, Minecraft version, loader and file type in one place.