Trailhead Promise: Indestructible Backcountry Safety with Temporal & Gemma

Описание и применение

Trailhead Promise – система безопасности для походов, работающая без сети и с минимальным экранным временем, использует Gemma для извлечения маршрута, Zod для проверки схемы и Temporal для надёжного исполнения.

Задача

Backcountry safety apps rely on continuous cellular connectivity, failing when signal is lost and leaving hikers untracked.

Результат

Field tests near Hundru Falls demonstrated that the system autonomously escalated when a phone battery drained below 5% and the hiker failed to check‑in, proving the durability of the Temporal workflow and the effectiveness of the grammar‑constrained schema extraction.

Рабочий процесс

• 1. Hiker speaks itinerary at trailhead
• 2. Gemma model extracts itinerary into a Zod‑validated schema
• 3. Schema is sent to Temporal workflow
• 4. Workflow starts a durable timer for the hike deadline
• 5. Hiker can send check‑in or low‑battery signals via GPS telemetry
• 6. If deadline passes without check‑in, workflow dispatches emergency escalation via SMS and webhook

Доказательства

Existing safety nets like Strava Beacon or Apple Check‑In suffer from an even more dangerous structural flaw: they demand continuous cellular connectivity.

Источник

We set out to build Trailhead Promise with a strict design constraint: your total interactive screen time across a five‑hour hike must be under thirty seconds.

Источник

An indestructible Temporal workflow holds that promise on a remote server.

Источник