TacTalk Deafblind Messenger

TacTalk is a WhatsApp-style accessibility demo for deafblind communication using the Lorm tactile alphabet. It combines a shared hand input surface, tactile replay, sender-aware vibration playback, message normalization, and a lightweight two-contact conversation flow designed for demos and pitch videos.

Why This Project Stands Out

• Accessibility-first interaction model for deafblind users
• Anatomically anchored Lorm hand mapping with exact tactile gesture placement
• Single-screen input and replay flow for faster communication
• Outgoing message normalization so rough Lorm input becomes readable text
• Incoming tactile replay queue with sender context and vibration sequencing

Demo Features

• Draw or type Lorm messages on one shared hand canvas
• Select a contact and send a message with inline undo/backspace support
• Normalize outgoing text into clean readable sentences
• Preserve the raw original Lorm string in chat metadata
• Receive automatic demo replies only after the user initiates the conversation
• Replay incoming messages as tactile gesture sequences on the same hand

Tech Stack

• Expo Router
• React Native Web
• TypeScript
• Expo Haptics
• React Query

Run Locally

npm install
npm run web

For Expo development mode:

npm run dev

Typecheck

npm run typecheck

Build For Web

npm run build:web

Repository Notes

This standalone repository was extracted from a larger workspace so it can be shared cleanly as an employer-facing project.