Well they are trying to reach FOSS community. Recently they started survey asking community "Hello here, we (AdaCore) have some plan for the future of GNAT Community that we want to share and have your opinion on: https://forms.gle/Q34myTCQUXvrva5n7
"
There is Ravenports very good port manager written in ada for FreeBSD so ada can be used for CLI apps and has good gtk binding too