Tummy sleeping?

So baby boy will be 2 months on the 19th! I’m trying to figure out how to make him comfortable enough to sleep in his bassinet by himself. So far the only thing he likes is sleeping on his tummy. Which we let him do during the day but only when we’re watching him! Doc didn’t say he couldn’t sleep on his tummy but with the first we were told to not let her do it until she can roll over! (Which she was doing before month) Son can move from his back to side pretty easy but not side to tummy that well and i haven’t seen him do the reverse! ANYWAYS, what do you guys suggest to get him off his tummy? He hates being swaddled, he can only last a couple of hours then he gets frustrated that he can’t move his arms. We’ve tried the swaddling sack and he hates that too lol!

I deleted the picture of him in the sack....I’m not concerned with him sleeping in it. He doesn’t like it, he also doesn’t use it.