Is there a hack to make your backpack hold more space without buying any expanders

Hi i was just wondering

I recently used that achievement hack and filled me backpack with items i was wondering if someone can make a hack which makes ur backpack bigger! If there is please reply!

or post on mpgh!

Craft your sh*t. Or make multiple accounts and make them premium?

No theres no way to extend the backpack with out buying or trading a backpack expender.