Projects & Experiments

Hybrid Real-Time Architecture

Dual-layer system: Socket.io for instant signaling (room presence, chat) + WebRTC for peer-to-peer media streaming with minimal server costs

Automated CI/CD Pipeline

GitHub Actions triggered by semantic version tags (v1.0.0) → Docker build → DockerHub push → SSH deployment to AWS EC2 with zero manual intervention

Dynamic Media Renegotiation

Custom replaceTracksInAllConnections() logic enables seamless camera/screen-share switching without dropping P2P connections

Tiered RBAC System

JWT authentication with Guest/Free/Premium tiers. Custom middleware enforces permissions at both API and Socket levels

Modular Backend Engine

NestJS backend architecture featuring course creation workflows, Mongoose schemas, and tiered RBAC (Admin/Instructor/Student).

Secure Media Pipeline

Implemented AWS S3 presigned URLs with CloudFront CDN for adaptive delivery of video, audio, and PDF content under heavy workloads.

Enrollment & Payments

End-to-end Razorpay integration for seamless enrollment workflows alongside real-time progress tracking and analytics dashboards.

Comprehensive Frontend

Responsive Next.js UI with curriculum builder, grading interfaces, and performance optimizations using lazy loading.

Secure OAuth Authentication

NextAuth.js with GitHub/Google OAuth providers, session management, and protected API routes

MongoDB Aggregation Pipelines

Complex queries for reputation, hot questions, related posts using MongoDB aggregation framework

Reputation & Voting System

Stack Overflow-style reputation with upvotes/downvotes affecting user scores and badge system

Rich Text with Code Highlighting

TinyMCE editor with syntax highlighting, markdown support, and code block formatting

Live Collaboration

Real-time multi-user drawing with live cursor tracking, conflict-free replicated data types (CRDT)

Infinite Canvas Engine

Pan/zoom with hardware acceleration, efficient viewport culling for rendering 1000+ elements

Instant Sync with ConvexDB

Optimistic updates with automatic sync - changes appear instantly with background persistence

Rich Drawing Tools

Freehand, shapes, arrows, sticky notes, text annotations with custom styling and layers

Real-time Pose Estimation

MediaPipe BlazePose model running at 30fps with 33 body landmarks detection for accurate skeletal tracking

Client-side ML Processing

TensorFlow.js with WebGL acceleration - zero server dependency, runs entirely in browser for privacy

Smart Posture Scoring

Calculates spine angle, shoulder alignment, and head position to generate real-time posture health scores

Break Reminders & Analytics

Intelligent break scheduling with session-wise posture analytics and improvement tracking

Real-time Chat Engine

Django Channels WebSocket implementation for instant messaging with typing indicators

Topic-based Study Rooms

Create/join rooms by subject - participants can share resources and discuss topics

Smart Room Discovery

Search by topic, filter by activity level, browse trending rooms with member counts

Activity Dashboard

Track participation, message counts, room activity streaks, and study time analytics

Precise Time Tracking

Background service worker tracks active tab time with pause detection and session logging

Enforced Blocking Mode

Content script injection blocks site access when limit reached - with optional 5-min override

Usage Analytics Dashboard

Daily/weekly charts showing usage patterns, peak hours, and trend comparisons

Customizable Limits

Set daily limits, schedule "focus hours", whitelist specific pages, sync across devices