An exceptionally well-engineered, honest and reproducible native HarmonyOS prototype whose per-hop-signed mesh alerting genuinely works across three emulators, held below the top tier only because the NearLink radio path has never been proven on real hardware.
Per-hop ECDSA P-256 verification with store-and-forward and a bundled offline protective-point map is a distinctive combination built around NearLink. Mesh alerting itself exists and the signed-relay pattern alone is not new, so the score sits above average but not top.
The offline map, verified inbox and relay demonstrably work across three emulator apps and fit a real civilian problem with a bilingual UI. The headline phone-to-phone promise is only shown through a labelled WebSocket hub and the issuer is exercise-only, so field usefulness is not yet proven.
Clean MVVM ArkTS with 177 passing host tests that run the real transpiled source, zero ArkTS and lint errors on both source sets, bounded parsing and correct lifecycle handling. No secrets or keystores are committed.
Genuine deep use of OHOS kits: a NearLink adapter with capability gating and MTU framing, Crypto Architecture Kit verification, Network, Location, ArkData, Accessibility, Localization and Sensor kits, plus a second Oniro product built from the same codebase. The only cap is that the radio path itself is emulator-mocked.
A 2 min 58 s narrated, captioned recording of three synchronized API 24 emulator apps with stand-ins and speed-ups clearly labelled, backed by a 68-screenshot gallery. The pack could not independently verify the video, but the committed evidence is consistent with it.
One-command checks with documented expected output, Windows and Linux/Oniro instructions, a released HAP with SHA-256, fresh-clone build evidence and an unusually candid AI_WORKFLOW.md. A stranger could plausibly rebuild, with the caveat of a specific DevEco setup.
claude:glm-5.3-flash79.080% agreedots-studio/dots-3-note-preview:free78.0100% agreeinclusionai/ling-3.0-flash-sante:free80.090% agreeclaude:glm-5.3–judgeThe council, the evidence pack, the prompts and the queue are all on GitHub. If a review helped you, a star helps other teams find it.