The Ada support has been removed from FreeBSD 13.1 ports because it was deprecated. Indeed, the gcc6-aux port was deprecated and expired on 2022-02-28. There is no indication about a replacement solution and using Ada for FreeBSD is a challenge but this is still possible. This article records a number of steps and commands that helped me setup a new Ada compiler based on GCC 12 on a fresh FreeBSD 13.1 installation.