Tree Sync

A PoC for local-first replicated tree synchronization using PowerSync and Supabase.

Tech Stack

• Framework: Next.js 15
• Authentication: Supabase
• Sync Engine: PowerSync
• Database: Supabase (& PowerSync buckets for download)
• Styling: TailwindCSS
• State Management: MobX

Getting Started

1. Install dependencies:

npm install

2. Set up environment variables:

cp .env.example .env.local

3. Fill in the environment variables in .env.local:

4. Run the development server:

npm run watch

Architecture

Key Components

• src/app: Next.js app router pages
• src/components: Reusable React components
• src/library: Core business logic
  • auth: Authentication services
  • powersync: Database and sync functionality
• src/stores: MobX state management

Development

• npm run watch: Start development server
• npm run build: Production build
• npm run start: Run production server
• npm run lint: Run linting

Project Structure

src/
├── app/                 # Next.js pages
├── components/
│   ├── Header.tsx      # Main navigation
│   ├── TreeView/       # Tree visualization
│   └── providers/      # React context providers
├── library/
│   ├── auth/           # Authentication logic
│   └── powersync/      # Sync handling
└── stores/             # MobX state management