As the title say it, this mod is still experimental, and aims to develop an advanced biome system using the v5/v7/valleys mapgens biomes. The official MT game's biome system has 8 biomes. This mod will have 30 biomes.
These 30 biomes are already registered, but they're not all differentiated for now. I will add some more plants for that.
When installed on Minetest, the mod is named "30biomes".