Right-click on Valheim in your Steam library.
Click Properties.
Select the General tab.
Click the text box under Launch Options.
In that box, type “-console” (without the quotes).
Launch the game.
Press F5 to bring up the console commands again.
Type “devcommands” (without the quotes).
Previously, it was imacheater, which is kind of funny!

to spawn in use: spawn {item} {number of item}
so that would look like this: "Spawn scrapiron 30"
or "spawn fine wood 50"