He's not locked into any particular DE mold, that after a bit of S&C, along with some quality pounds added, he can play either strong side or weak side.
He's got a big frame, so adding that weight should be relatively easy.
Link: https://247sports.com/college/notre-dame/article/aidan-oneil-commitment-notre-dame-fighting-irish-blue-chip-edge-marcus-freeman-283758396/