Austin Airport almost gave us the worst air disaster in decades yesterday. These planes were less than 75 feet from each other, literally landing and taking off at the same time, one on top of the other. pic.twitter.com/KJbgD3IwiN

— Levi (@Levijameshere) February 5, 2023

Damn that was close. If I remember right, most (perhaps all?) ACAS Resolution Advisories (alarms) are inhibited on or close to the ground so this was all ATC at fault here.