Make sure you dry your steak extremely well, and then basically shallow fry it in a cast iron or other heavy pan. Don’t need to deep fry it, but if you really want it as crispy, you want a real layer of oil.
One strength of sous vide is you can get even normal steaks much more tender than otherwise possible, just by extending your sous vide time up to two or three hours.
Install a 3rd party launcher if you want to get rid of those too