I have been creating the Nekoropolia Pokemon Minecraft server since 2020.
It is currently in beta and will be in this version no less than the Generations mod.
The plan is to divide it into two worlds: adventure and survival, you will be able to move freely between them, but currently only survival mode is available.
It is not recommended to use this mod pack in the single player world, but quests and adventure world will be added in the future.