Gird based Inventory

Hi there! I’m new making inventorys and me and my friend have been looking to make a gird based inventory, something like Subnautica has, with crafting, batteries system and all that stuff, we have looked a lot of tutorials but the most of them just have the basic part of the gird, we are still looking for a way to make the hotbar with the hands animations, the chests and looting, the crafting and all of that things, can anyone please help?