Recovers the crashed iteration #7 (items 21+23, Latitude QA findings):
- nomarchy-waybar supervisor (waybar.nix, exec-once'd from
hyprland.nix): any waybar exit respawns the bar; crash-loop guard
(5 fast exits -> critical notify + stop); TERM trapped for a real
stop. Fixes the bar-less session after a theme-switch crash.
- nomarchy-theme-sync prefers a clean `pkill -x waybar` (supervisor
restart with fresh config+style) over the crash-prone in-place
SIGUSR2 reload when the supervisor is running; SIGUSR2 stays as the
unsupervised fallback.
- sys-rebuild: snapshot-first system rebuild against the CURRENT lock
(no `nix flake update`) — the no-update twin of sys-update;
README §3/§5 + motd list it.
Verified: V0 re-run green after crash recovery (flake check --no-build
+ py_compile); V1/V2 per the crashed session's journal entry (HM
renders exec-once=nomarchy-waybar; headless software-GL VM:
SIGKILL -> new pid, clean kill -> respawn, SIGUSR2 -> alive).
V3 pending on the Latitude (queued in HARDWARE-QUEUE.md).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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