feat(backup): backup stacklet v1: append-only sync to attached APFS disk#17
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feat(backup): backup stacklet v1: append-only sync to attached APFS disk#17arthware-dev wants to merge 3 commits into
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Append-only backup of stacklet data to an attached APFS disk. Photos (Immich originals) and documents (Paperless archived PDFs) sync nightly via cron; every file is locked with the kernel uchg flag once on the vault, so accidents and ransomware cannot reach back through. Stacklet: * host-type stacklet, opt-in via 'stack up backup' * interactive on_configure prompts for disk, encryption, nightly time * on_install plants the canary tripwire, generates an FDA-granted .app wrapper, installs the cron entry * on_stop / on_destroy remove the cron defensively; vault data and the Keychain entry are preserved External-disk engine: * rsync --ignore-existing for append-only writes * chflags uchg on every new file (kernel-enforced immutability) * canary + preflight refuse to sync a wiped source * filesystem probe refuses non-APFS targets at runtime * per-run JSON appended to history.jsonl (append-only audit trail) Orchestrator: * discovers [[backup.archive]] across enabled stacklets * posts summary to #famstack via stacker-bot Reserved for follow-up: [[backup.snapshot]] for DB dumps, 'stack backup restore' + per-stacklet on_restore hooks, encrypted offsite via restic. Tests: 153 unit + 9 E2E against a real APFS sparse image.
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Summary
backupstacklet: append-only sync of photos (Immich originals) and documents (Paperless PDFs) to an attached APFS disk. Files are locked with the kerneluchgflag once on the disk, so accidents and ransomware cannot reach back through.stack backup sync/stack backup statusship as the user-facing CLI.stack up backupwalks setup (disk, encryption, nightly time), plants the canary, installs a cron entry, and points the user at the one-time/usr/sbin/cronFull Disk Access grant in System Settings.[[backup.archive]]declared byphotosanddocs. Reserved for follow-up:[[backup.snapshot]]for DB dumps,stack backup restore+ per-stackleton_restorehooks, encrypted offsite via restic.