u/Hawthorne_northside

My deck comes off the back porch and there’s an overhanging roof. I didn’t take the support post for the roof into consideration when I laid out the deck. As you can see from the picture, the deck is completed. To install the support post, I have to create a new footer at ground level. The roof support post will rest on the deck, and right underneath, the floorboards is a joist. You can see it in the second picture. My path forward is to get up under the deck, dig the hole, pour the footer, put in a post to support the joist and then have the roof support sit on top of the joist. Does anybody see a problem with that?