DragonFly dfbsd 6.5-DEVELOPMENT DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026
  root@dfbsd:/usr/obj/usr/src/sys/X86_64_GENERIC  x86_64
compiler: cc (GCC) 12.0.0 (guest world), PoC built with cc -O
/dev/ptmx: crw-rw-rw- root wheel (world-open, unprivileged reach)
rig note: console/tty0 is the rig's own serial; repro via ptmx/pts pair.