Hōzō. 宝蔵
Wake-on-demand ZFS backup orchestrator
Hōzō wakes a sleeping backup server, replicates ZFS snapshots over SSH, verifies the result, then shuts the server back down. Built for low-power homelab backup nodes — Intel NUC, Beelink, Raspberry Pi — silent, off when not in use.
Wake. Sync. Sleep.
Wake-on-LAN, wait for SSH, optionally spin up a USB drive, run syncoid, verify, then shut the box down.
Tested in production.
278 tests, 99% coverage, zero lint errors — not a prototype.
Passkeys only.
WebAuthn-only auth. No passwords to leak, no shared secrets, no bearer tokens. Your device is your key.
How it works
┌─────────────────────────────────┐
│ Hōzō Controller │ (your always-on machine)
│ │
│ Scheduler ──► Job runner │
│ │ │
│ Wake-on-LAN packet │
│ │ │
└────────────────────┼────────────┘
│ SSH / WoL
▼
┌─────────────────────────────────┐
│ Remote NUC / Beelink │ (sleeps until backup time)
│ │
│ Wakes ──► USB drive spins up │
│ syncoid runs │
│ verify snapshot │
│ shutdown │
└─────────────────────────────────┘
│
▼
ZFS pool on USB drive
(offsite-ready replica)
Run it yourself
git clone https://github.com/sageframe-no-kaji/hozo-sentinel cd hozo-sentinel python -m venv venv && source venv/bin/activate pip install -e .
Python 3.10+. syncoid must also be on
PATH — it ships with
sanoid
(apt install sanoid). A Docker image is also
included in the repo.