If at any point you are missing libraries in your IDE, or you've run into problems you can run "gradlew --refresh-dependencies" to refresh the local cache. "gradlew clean" to reset everything {this does not affect your code} and then start the processs again.
"setupCIWorkspace": Same as Dev but will not download any assets. This is useful in build servers as it is the fastest because it does the least work.
Tip:
When using Decomp workspace, the Minecraft source code is NOT added to your workspace in a editable way. Minecraft is treated like a normal Library. Sources are there for documentation and research purposes and usually can be accessed under the 'referenced libraries' section of your IDE.
Forge source installation
=========================
MinecraftForge ships with this code and installs it as part of the forge
installation process, no further action is required on your part.