Projects by Yaduraj Singh

Raunak

An India-first event ticketing platform that takes organizers from event setup to paid bookings and QR-based entry.

Technologies: Next.js 16, TypeScript, PostgreSQL, Prisma, Cashfree

Aarogya Setu

Multi-tenant hospital SaaS — OPD/IPD queues, EMR, appointments, billing, pharmacy, diagnostics. 6-tier RBAC.

Technologies: Next.js 14, TypeScript, Prisma, PostgreSQL, Redis, Docker

Tollgate

Cost & usage observability for LLM APIs. Reverse proxy for OpenAI, Anthropic and OpenAI-compatible providers — one base URL for per-feature cost, caching, budgets and runaway-agent alerts.

Technologies: OpenAI API, Anthropic API, OpenRouter, Vercel

MuhDikhai

WebRTC video chat with a Node.js signaling server, Socket.io offer/answer exchange, Redis matchmaking and configurable TURN fallback.

Technologies: Node.js, TypeScript, WebRTC, Socket.io, Redis, PostgreSQL

SecondMind / CortX

Cognitive OS on ESP32-S3 Sense. Voice → faster-whisper → local LLM → Coqui TTS. VAD firmware, Opus compression.

Technologies: ESP32-S3, FastAPI, Flutter, Neo4j, Qdrant

GBU Timetable

Official iOS app for GBU students. Live home-screen widgets via WidgetKit. Real-time schedule updates.

Technologies: SwiftUI, Combine, WidgetKit

Maakosh

Maternal & neonatal health iOS app. Wearable sensor integration (MAX30100, EMG) for real-time vitals. Role-based.

Technologies: Swift, Firebase, ThingSpeak

Bolonyay

Multilingual legal aid iOS app — petitioners with regional advocates. Voice-assisted forms, automated PDF reports.

Technologies: Swift, Firestore, PDFKit, STT

Fleet OS

Git push to the hardware you already own. A Raspberry Pi, an old laptop and a spare VPS, treated as one deploy target — multi-arch builds, constraint-based placement, health-gated rollouts and automatic failover.

Technologies: Go, TypeScript, Fastify, Drizzle ORM, PostgreSQL, Redis, Docker Buildx, React, Vite, nginx, Cloudflare Tunnel