History

Thomas Hallock 1f1083773d perf: add timing instrumentation to worksheet page SSR Track where time is spent during worksheet page render: - loadWorksheetSettings (DB query + getViewerId) - generateWorksheetPreview (problem generation + Typst compilation) - Total page render time Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>		2026-01-23 14:21:12 -06:00
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.claude	perf: add timing instrumentation to worksheet page SSR	2026-01-23 14:21:12 -06:00
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drizzle	feat(flowchart-workshop): add version history with preview mode	2026-01-23 13:52:59 -06:00
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src	perf: add timing instrumentation to worksheet page SSR	2026-01-23 14:21:12 -06:00
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CARD_SORTING_PORT_PLAN.md	…
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litefs.yml	refactor(flowchart): remove legacy schema-specific formatting, add display.problem check	2026-01-22 11:03:15 -06:00
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README.md

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