Files
soroban-abacus-flashcards/apps/web
Thomas Hallock b3b769c0e2 feat(vision): broadcast vision frames to observers (Phase 5)
Wire up the vision broadcast pipeline:

1. DockedVisionFeed captures rectified frames from canvas and emits
   them at 5fps via the context's emitVisionFrame callback

2. PracticeClient wires setVisionFrameCallback to call sendVisionFrame
   from useSessionBroadcast, connecting the context to the socket

3. useSessionBroadcast sends VisionFrameEvent to the session channel
   with imageData, detectedValue, and confidence

4. socket-server relays vision-frame events to observers

5. useSessionObserver receives and stores visionFrame for display

6. SessionObserverModal shows ObserverVisionFeed when visionFrame
   is available, replacing the interactive AbacusDock with the
   student's live camera feed

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-01 15:28:59 -06:00
..

Soroban Web Application

Interactive web application for learning soroban (Japanese abacus) calculation with tutorials, practice sessions, and multiplayer arcade games.

Features

  • Tutorials - Step-by-step lessons for learning soroban techniques
  • Practice Sessions - Adaptive practice with progressive help system
  • Arcade Games - Multiplayer educational games for reinforcement
  • Worksheet Generator - Create printable math worksheets

Getting Started

# Install dependencies
pnpm install

# Start development server
pnpm dev

# Run type checks
npm run type-check

# Run all quality checks
npm run pre-commit

Documentation

Components

Component Description
Decomposition Display Interactive mathematical decomposition visualization
Worksheet Generator Math worksheet creation with Typst PDF generation

Games

Game Description
Arcade System Modular multiplayer game architecture
Know Your World Geography quiz game

Developer Documentation

Located in .claude/ directory:

  • CLAUDE.md - Project conventions and guidelines
  • CODE_QUALITY_REGIME.md - Quality check procedures
  • GAME_SETTINGS_PERSISTENCE.md - Game config architecture
  • Z_INDEX_MANAGEMENT.md - Z-index layering system
  • DEPLOYMENT.md - Deployment and CI/CD

Project Structure

apps/web/
├── src/
│   ├── app/                 # Next.js App Router pages
│   ├── components/          # Shared React components
│   │   ├── decomposition/   # Math decomposition display
│   │   ├── practice/        # Practice session components
│   │   └── tutorial/        # Tutorial player components
│   ├── contexts/            # React context providers
│   ├── arcade-games/        # Multiplayer game implementations
│   ├── hooks/               # Custom React hooks
│   ├── lib/                 # Utilities and libraries
│   └── db/                  # Database schema and queries
├── .claude/                 # Developer documentation
├── public/                  # Static assets
└── styled-system/           # Generated Panda CSS

Technology Stack

  • Framework: Next.js 14 (App Router)
  • Language: TypeScript
  • Styling: Panda CSS
  • Database: SQLite with Drizzle ORM
  • Abacus Visualization: @soroban/abacus-react

Parent: Main README - Complete project overview Abacus Component: packages/abacus-react - Abacus visualization library