Blog

Engineering Insights

Deep dives into our engineering decisions, architecture patterns, and lessons learned from building 53+ projects across AI, IoT, and full-stack.

12

Articles

3

Featured

7

Featured Articles

AI & ML

12 min read

Building NEXUS AI OS: Architecture of a 13-Agent Local AI System

Deep dive into the architecture behind NEXUS AI OS — how we orchestrate 13+ specialized AI agents running entirely on-device with Ollama, ChromaDB, and a custom IPC bus.

Harsha Bonthada

Mar 1, 2026

ESP32 + MQTT: Building Smart Home Infrastructure at Scale

How we scaled our home automation from a single ESP32 relay to a production-grade IoT ecosystem with 9+ devices, MQTT mesh networking, and OTA firmware updates.

Harsha Bonthada

Feb 15, 2026

Building NEXUS AI OS: Architecture of a 13-Agent Local AI System

Deep dive into the architecture behind NEXUS AI OS — how we orchestrate 13+ specialized AI agents running entirely on-device with Ollama, ChromaDB, and a custom IPC bus.

Harsha Bonthada

Mar 1, 2026

IoT

10 min read

ESP32 + MQTT: Building Smart Home Infrastructure at Scale

How we scaled our home automation from a single ESP32 relay to a production-grade IoT ecosystem with 9+ devices, MQTT mesh networking, and OTA firmware updates.

Harsha Bonthada

Feb 15, 2026

Architecture

8 min read

Our Full-Stack Monorepo Architecture in 2026

A practical guide to how we structure our multi-platform projects — from shared TypeScript types to Docker orchestration — across React, React Native, Electron, and Node.js.

Harsha Bonthada

Feb 1, 2026

AI & ML

11 min read

Ensemble Learning for Cancer Risk Prediction: Our CancerGuard AI Approach

How we built a HIPAA-aligned cancer risk prediction system using an ensemble of XGBoost, LightGBM, Random Forest, and Neural Networks — with 69 API endpoints.

Harsha Bonthada

Jan 20, 2026

DevOps

7 min read

Docker Compose for Production: Lessons from Deploying 8 Apps

Real-world lessons from running 8 production applications on Docker Compose — from health checks to zero-downtime deployments.

Harsha Bonthada

Jan 10, 2026

AI & ML

9 min read

Vision AI: Active Learning with YOLOv8 on ESP32-CAM

How we built an active learning pipeline that continuously improves YOLOv8 object detection accuracy using ESP32-CAM edge devices.

Harsha Bonthada

Dec 28, 2025

Engineering

8 min read

Building an Enterprise HRMS from Scratch: Replacing Keka + Jira

How HT Connect became a unified platform replacing two enterprise tools — sprint boards, leave management, onboarding, and performance reviews in one codebase.

Harsha Bonthada

Dec 15, 2025

Engineering

10 min read

Local-First Algorithmic Trading with DuckDB and Python

How we built a quantitative trading engine for Indian equities (NSE) that runs entirely on your machine — no cloud, no latency, no subscription fees.

Harsha Bonthada

Dec 1, 2025

Open Source

6 min read

Why We Open Source Everything: The Circuvent Philosophy

Our approach to open source development — why every project is public, how we structure repositories for community contribution, and the business case for transparency.

Harsha Bonthada

Nov 15, 2025

Engineering

9 min read

Flutter + Firebase in Production: 4 Apps, 18 Months, Key Lessons

Practical lessons from running 4 Flutter applications with Firebase backends in production — from Firestore query optimization to FCM notification delivery.

Harsha Bonthada

Nov 1, 2025

Engineering

8 min read

React Native in 2026: Building TravelMate Across iOS, Android, and Web

Our experience building TravelMate — a cross-platform travel app with GPS, real-time translation, offline maps, and Gemini AI — using React Native and Expo.

Harsha Bonthada

Oct 20, 2025

Company

6 min read