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install.sh writes the last 12 chars of the DMI system UUID to config.d/machine_uuid.sys (0444) after git clone, so non-root scripts can derive the hardware-bound hostname without needing dmidecode. conf.dist reads machine_uuid.sys first; falls back to dmidecode (root) or hostname -s (user) if the file is absent. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>