Alwin Madhu

Writing

Technical architecture notes, system design thinking, and development post-mortems.

2026 Architecture

Building LIORA: Lessons in Privacy-First Health Engineering

Why period tracking applications must prioritize zero-cloud data models, on-device encryption, and user data sovereignty in sensitive domains.

2025 Engineering

Designing Offline Mesh Networks with SCREAM

A deep dive into device-to-device Wi-Fi Direct protocols, store-and-forward routing, and building communications systems resilient to ISP outages.

2025 AI

Offline Personal Computing: Why Megamind Runs 100% Locally

The architectural blueprint behind running local open-weight LLMs, speech-to-text engines, and desktop automation without third-party APIs.