For setup instructions please see the fabric wiki page that relates to the IDE that you are using.
This mod implements two biosphere terrain generators for the overworld. One is a recreation of Risugami's original biosphere's mod, and the other is a new version which carves biospheres out of the default terrain generator for more interesting terrain.
It is made for Minecraft 1.16 and above.
This is not a Forge mod, however there does exist a Forge version of this mod created by harryyoud.
This mod uses the GNU LGPLv3 license.