Adorn is a project that it setup differently than most mods as it:

• Uses Architectury to build Forge and Fabric simultaneously.
• Works with Kotlin instead of Java.

To have both is quite amazing.
My experience with gradle is minimal and if I would want to create a mod with Architectury and Kotlin it is quite difficult to know what needs to be done to set this up / migrate an existing project.
Thus this issue is a request for documentation in the all the build.gradle.kt files and what each section in gradle does and why certain dependencies were used.

Possible details about how/why datagen is setup would also be appreciated.
Many people use other mods as references and examples to create their own mods, more documentation would greatly help this.

I added a lot of docs in bd70a29 :^)

There's nothing special needed for using Kotlin instead of Java, really, other than applying the corresponding Gradle plugin (org.jetbrains.kotlin.jvm) and using the Fabric Language Kotlin/Kotlin for Forge language adapters according to their instructions.

Migrating an existing project is a bit more work, but can generally be done if you move the Fabric/Forge code into that specific subproject and create the new root/common projects as needed. It might also be easier to use an Architectury template and copy the code there.