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calendar_sync

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🚀 Calendar Sync

A premium, high-performance social calendar aggregator built with SvelteKit 2 and Svelte 5.

🌟 Architecture & Overview

Calendar Sync is a sophisticated event management platform that consolidates fragmented social event feeds (Luma, Partiful, Meetup) into a single, high-performance dashboard. It solves the “calendar sprawl” problem by providing a unified, reactive interface for both personal schedules and social coordination.

The system is designed with a persistence-first caching layer using Neon Serverless Postgres, ensuring that even with multiple heavy external iCal feeds, the user experience remains instantaneous and fluid.

💻 Technical Stack & Proficiencies Showcase

Backend & Core Systems

  • Framework: SvelteKit 2 (Server-side rendering, Edge-ready loaders)
  • Language: TypeScript (Strict type safety across the full stack)
  • Sync Logic: Robust server-side background sync workers using node-ical
  • Security: AES-256-GCM authenticated encryption for sensitive external feed URLs

Frontend Engineering

  • Reactive Engine: Svelte 5 (Leveraging Runes like $state and $derived for peak performance)
  • Calendar UI: Integration with Schedule-X for a modern, accessible calendar experience
  • Styling: Custom Vanilla CSS Design System featuring glassmorphism and micro-animations

Databases & Caching

  • Relational (SQL): Neon Serverless Postgres
  • ORM: Drizzle ORM (Type-safe migrations and relational queries)
  • Data Modeling: Complex social graph modeling for bilateral friendship and granular sharing permissions

⚙️ Engineering Best Practices

  • Security First: End-to-end encryption for third-party tokens and strict server-side boundary isolation (.server.ts).
  • Data Integrity: Normalization of disparate iCal data formats into a unified internal schema.
  • Privacy: Bilateral sharing controls allowing users to selectively share specific event providers with specific friends.

📈 Scalability & Performance

  • Database Optimization: Efficient indexing on event start times and external UIDs to support rapid dashboard rendering.
  • Efficient Reactivity: Utilizing Svelte 5’s fine-grained reactivity to handle dense event grids without UI lag.
  • Hybrid Persistence: Combining real-time feed fetching with a durable database cache to mitigate external API latency.

🚀 Getting Started

# Clone the repository
git clone https://github.com/ankittejyadav/calendar_sync.git

# Navigate into the project
cd calendar_sync

# Install dependencies
npm install

# Setup database
npm run db:generate
npm run db:migrate

# Run the development server
npm run dev

🔗 Project Links

This repository represents a sample of my technical capabilities. For a complete overview of my engineering portfolio, visit my GitHub Profile.

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