Hey guys how are you this is a Fabric 1.17.1 Mod that allows you to combine,upgrade structures and craft custom trees all the crafting recipe are given in the images and also If the mod is not working please comment in this mod page or send a private message to me in CurseForge why because I can fix it hope you enjoy Thanks;)
Required
Fabric https://fabricmc.net/use/
Fabric Api https://www.curseforge.com/minecraft/mc-mods/fabric-api
Recomended
Mod Menu https://www.curseforge.com/minecraft/mc-mods/modmene
Credits
Santhosh