mkinitramfs.sh, mkimage.sh and run.sh all read $OUT, and ui-drive.sh left
it at the shared default, so two concurrent runs built and booted the same
qemu/out/disk.img and wrote their userdata into it: a VM seeded with
role=1 read back client because the unseeded run next to it had rebuilt
the image (#20). Each run now builds and boots its own image under
$TMPDIR (real disk; /tmp is a tmpfs on the dev box and the run refuses to
start with under 1 GB free there), keeps the pinned busybox shared and
read-only through BUSYBOX, and removes the image on exit.
Verified: a seeded router-mode flow, the unseeded client-mode flow and a
third flow booted at once, 25/25, 25/25 and 10/10, each reading its own
role.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N3G6m9Aw5RyVY4ZowtKzEj
