I would recommend staking down the arm with the inflation valve first, then inflating the tent and zipping the wall before finalizing your stake placement.
The Soli Air Canopy inflates easily with the included rechargeable air pump in just a few minutes. Thanks to the flexible nature of the inflatable you can move the legs in or out for an optimal angle. Though in order to fully zip the included shade wall into place, the legs have to be a certain distance apart. I would recommend staking down the arm with the inflation valve first, then inflating the tent and zipping the wall before finalizing your stake placement.