[post-factum]

It is also used in one of the Linux kernel debuggers: https://codeberg.org/pf-kernel/crush

[xvilka]

Haha, I noticed you had this commit https://codeberg.org/pf-kernel/crush/commit/24c19bfacc7fff64...

Upcoming v6 release (current 'next' branch) of the capstone updated SystemZ (S390) significantly, so it should work even better now.