Apply Joint Compound and Install Patch

What happens here

Using a mud pan and a taping knife, apply a thin, even layer of joint compound around the perimeter of the existing hole in the wall. Make sure there is enough compound for the paper edges of your custom patch to adhere to. Carefully align your prepared patch with the hole, making sure the paper edges overlap the existing wall surface. Press the patch firmly into the joint compound, smoothing out the paper edges with your taping knife to ensure good adhesion and to remove any air bubbles. The goal is to embed the paper edges flush with the existing wall.

Goal: Apply a thin layer of joint compound around the edges of the hole, then firmly press the prepared patch into place, ensuring the paper edges adhere properly.