Design Decision Blogs & System Architectures

In-depth architectural breakdowns answering: why specific databases and protocols were selected, how real-world bottlenecks were resolved, and how production microservices scale.

01·fullstack Featured Case Study

Multi-Tenant LMS - Enterprise Educational Platform

Zero-Egress HLS Streaming & Microservice LMS Architecture

Educational institutes face high operational overhead and prohibitive SaaS costs when managing multi-role onboarding, video delivery, and student assessment. This LMS provides a unified, low-cost multi-tenant platform with role-based access control, zero-egress video streaming, and real-time classroom interaction.

Key Architectural Trade-Off:

“Why MongoDB instead of PostgreSQL?” → Educational content (courses, modules, chapters, varied quiz types) is deeply nested and dynamic. MongoDB document storage prevents expensive multi-table SQL joins while maintaining rapid query flexibility.

Multi-Tenant LMS - Enterprise Educational Platform Architecture

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Next.jsTypeScriptNode.jsExpress.jsMongoDB

02·blockchain Featured Case Study

RemitPay

Government-Controlled Blockchain Remittance System

Cross-border remittances are plagued by high friction, delayed settlement times, and opaque intermediary fees. RemitPay models a sovereign-regulated decentralized remittance system where anti-money laundering (AML) compliance and tier limits are codified directly on-chain while enabling instant peer-to-peer settlement.

Key Architectural Trade-Off:

“Why on-chain KYC verification tracking?” → Ensures regulatory compliance cannot be bypassed at the frontend or API layer, providing cryptographic proof of compliance.

Read Architecture Blog Live Demo GitHub

SolidityEthereumOpenZeppelinNext.jsReact

03·blockchain Featured Case Study

Flute (ArtiFusion)

AI-Powered NFT Generator & Ethereum Marketplace

Creators without technical Web3 knowledge encounter significant barriers when transforming generative AI art into tradeable cryptographic assets with decentralized storage guarantees.

Key Architectural Trade-Off:

“Why IPFS instead of cloud storage for NFT assets?” → NFT metadata must remain immutable and verifiable by token holders forever; IPFS content identifiers (CIDs) prevent rug pulls.

Read Architecture Blog Live Demo GitHub

Next.jsReactTypeScriptEthereumSolidity

04·fullstack Featured Case Study

Chess Master - Real-Time Multiplayer Chess Platform

Play chess with AI and friends in real-time

Real-time multiplayer chess platforms often suffer from high cloud compute bills and backend freezes when running CPU-intensive chess engine evaluations. React Chess solves this by combining global Socket.IO multiplayer with zero-cost, client-side Stockfish Web Workers and instant FEN game analysis.

Key Architectural Trade-Off:

“Why Web Workers for Stockfish?” → Running chess engine calculations on a central Node.js server for thousands of concurrent players would crash server CPU. Web Workers offload 100% of compute to client browser threads with zero cloud cost.

Chess Master - Real-Time Multiplayer Chess Platform Architecture

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MongoDBExpress.jsReact.jsNode.jsWebSockets

05·ai Featured Case Study

Hiraya - AI-Powered Campus Assistant

Smart campus companion with RAG architecture

University students frequently struggle to find accurate, up-to-date information regarding campus rules, placements, and exam notices scattered across PDFs. Hiraya is an AI Campus Assistant for NIT Hamirpur using strict Retrieval-Augmented Generation (RAG) to provide verified, hallucination-free streamed answers from a maintainer knowledge base.

Key Architectural Trade-Off:

“Why Local Embeddings (transformers.js)?” → External APIs like OpenAI introduce recurring costs and network round trips. Running all-MiniLM-L6-v2 locally in WebAssembly/ONNX reduced embedding costs to $0 and cut retrieval latency.

Hiraya - AI-Powered Campus Assistant Architecture

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Read Architecture Blog Live Demo GitHub

React.jsNext.jsTypeScriptSQLPrisma ORM