Unclear about adding Sqlite DB to Fly Volume

Okay great. Before I had the fly wireguard tunnel I was did a bunch of I did a bunch fly issue -agent commands because I was following steps from here: Persistent Volumes/SCPing of Files

I realize now I need a wireguard tunnel to scp my app from my host machine onto my into the volume in my app directory. I am now following the steps here: SSH connection to an instance

I am on step 2 and I can’t use fly establish because of all of my preexisting keys I made from those fly issue-agent commands(see log screenshot) Is there a workaround here so I can use fly establish to create the root org cert, ssh to my application’s root, and scp my file into the data directory.