| Dimension | OpenHW Lab (ours) | Brand NAS | Open-source/DIY NAS OS | Reflash-style box system |
| Approach | No flash, sidecar: stock Android + Ubuntu chroot | Purpose-built appliance | Install a full NAS OS on a PC/board | Replace: flash box to pure Linux |
| Flashing? | No (system/boot untouched) | No (buy & use) | Install OS (x86 disk; box needs flashing) | Yes (brick risk) |
| What your PC needs | Only adb (+ a bash to run scripts) | Nothing (browser) | USB installer | Flasher tool + matching firmware |
| Risk | Low, reversible: delete /data/linux to revert | Low (but pricey) | Medium | High (brick on error) |
| Stock features | Kept (IPTV/remote/serial) | — | — | Lost (pure Linux) |
| Hardware | Idle TV box (1GB, USB 2.0, often 1 port) | Appliance (multi-bay SATA, more RAM) | PC / board | Also a box (but reflashed) |
| Storage / RAID | External USB drive (single disk, no RAID) | Multi-bay RAID/snapshots | RAID/ZFS depending on HW | Depends on HW |
| Performance | Modest (old kernel, small CPU, USB 2.0) | Strong (transcode, multi-user) | Strong | Better (kernel replaceable) |
| Cost / power | Nearly free, ultra-low power | Hardware cost | Hardware cost | Low |
| Delivery | One zip (system+deps, offline-ready) + illustrated guide | A device | OS image + guide | Firmware image + flashing guide |
| Best for | People who want stable, cheap, reversible, stock-preserving | Pro storage & reliability | PC/board tinkerers | Players who want a pure server |
Any requirement on my PC's OS?
Barely. Linux / macOS are easiest (just install adb); Windows works too (run scripts in WSL or Git Bash, or follow the guide and type the adb commands). PC architecture (x86/arm64) doesn't matter. The one that matters is the box (Android + its arch, e.g. armv7/armhf).
Is this the same as "reflashing a box into a NAS"?
No. Reflashing replaces the box's whole OS (pure Linux); we don't flash — we run a chroot sidecar + our services inside the stock system.
Is my data safe?
Box solutions are usually single-disk, no RAID, old kernel — not for critical data. Use a real NAS for reliable storage.