Ported to 1.21.4, this is a less popular version so it will be ported to this version less frequently.
I am also working on porting FTR to 1.20.4, and 1.20.1 although I am running into some issues with downgrading.
Developer information
Projects on Modrinth are automatically available through a Maven repository for use with JVM build tools such as Gradle.
maven { name = "Modrinth"; url = "https://api.modrinth.com/maven" }