Crafting
There are three instances of crafting in the game. Two of which you will see a lot of. Of those two, one is where you first craft the weapon / item making it available for use, the second is replenishing your supplies of that item.
The first type of crafting where you unlock the item to make it available for use can be obtained by accomplishing various things like upgrading your cave, acquiring other wenja specialists and upgrading their huts.
You can see the requirements for an upgrade of an item to be made.
You can also see the effects of doing an upgrade along with any special bonuses if applicable.
The second type of crafting occurs from the Weapon Wheel and is used to replenish your supplies of arrows, clubs, spears, throwables.. etc..
The items required for crafting them is displayed here as well.
The third, and by no means least important of them are the hut (in Takkar's case, a cave) upgrades. These will unlock more Skills or Crafting Recipes to be made. These use village resources. Different Materials you get from resource nodes. For example, All the wood resource nodes give the weapon resource "Hardwood". Village resources are, in the starting zone, they give Alder Wood. The northern area gives North Rock, and the southern gives South Rock.