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- i18n: translate connection screen + chat tab keys into 13 locales; add "Send my contact" (advert) strings in all locales - feat: move self-advert from home header into composer "+" action menu (new lib/utils/advert_helper.dart, always shows Flood/Direct sheet) - fix: hide-repeaters map toggle was bypassed in simple mode - fix: simple mode map now shows only favourite chat contacts - fix: wrap ListTiles in Material (contact_tile secondary actions, inferred contact group card) to satisfy Flutter ink assertions - device-authoritative contact/channel sync and UX review fixes Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
MeshCore SAR
Field-ready Search and Rescue coordination over MeshCore + BLE
MeshCore SAR helps teams coordinate in low-connectivity or no-connectivity environments with messaging, voice, images, maps, and live location context in one app.
It uses the MeshCore protocol over LoRa for long-range, infrastructure-free communication.
iOS TestFlight: https://testflight.apple.com/join/tngpPF12
Highlights
- Rapid mesh chat for both 1:1 and group coordination
- On-demand voice (Codec2) and image (AVIF) transfer tuned for low-bandwidth links
- Offline-first mapping with tactical overlays and SAR incident markers
- Live team location, movement trails, and shareable tactical drawings
Demo Video
Screenshots
Feature Overview
| Area | What you get |
|---|---|
| Messaging | Direct and group chat over mesh, with contact/room awareness from live telemetry |
| Voice | Push-to-talk voice clips (Codec2), fetched on demand when play is pressed, auto-play on completion |
| Images | Camera/gallery image sending (AVIF), auto-compression, tap-to-load receiving, full-screen viewer |
| Maps | Street/topo/satellite/terrain layers, offline tile downloads, optional MBTiles import |
| SAR Operations | Team markers with freshness indicators, SAR markers for incidents and staging points |
| Tracking | Continuous GPS updates, personal trails, distance/duration trail stats |
| Trail Interop | GPX export/import for trail sharing and reuse |
| Tactical Drawing | Line/rectangle drawing, distance measurement, drawing sharing to channel/room |
Voice, Image, and Maps
Voice
- Built for short, urgent field communication
- On-demand playback fetch reduces unnecessary mesh traffic
- Ideal when typing is impractical during active operations
Images
- Pre-send optimization for constrained links
- Tap-to-load receiving keeps channels lightweight
- Full-screen view supports rapid field verification
Maps
- Works in both online and offline workflows
- SAR context with team markers, incident markers, and orientation tools
- Combines location, messaging, and tactical layers in one place
Built For
- Search and Rescue field teams
- Incident command and coordination roles
- Operators working in weak/no cellular coverage
Permissions (App Use)
- Bluetooth: mesh device communication
- Location: team tracking and map position updates
- Microphone: voice clip recording
- Camera / Photos: image messaging