Mixes official and file (yarn) mappings for better parameter names.
To install mojarn, add the Galacticraft repository to your settings.gradle.kts file:
pluginManagement {
    repositories {
//        maven("https://maven.galacticraft.dev/repository/maven-releases/") // currently offline
        maven("https://repo.terradevelopment.net/repository/maven-releases/")
    }
}Then, add the following to your build.gradle.kts file:
plugins {
    id("dev.galacticraft.mojarn") version("0.6.1+19")
}Finally, use the mappings in your project:
dependencies {
    mappings(mojarn.mappings("net.fabricmc:yarn:$minecraft+build.$yarn:v2"))
}