Writing

Notes on building.

Real lessons from shipping voice AI, high-traffic platforms, and AI products — from 7+ years as a solo founder.

React NativeMobilePerformanceAndroid9 min read

React Native Performance at Scale: How I Got opus to 60fps on Low-End Devices

The concrete optimizations that took opus from janky to silky-smooth on sub-$200 Android devices — FlatList tuning, JS thread management, Hermes, and the things that actually move the needle.

July 8, 2026Read article
Computer VisionOCRPythonAImanju10 min read

Building a Real-Time OCR Pipeline in Production: Inside manju's Architecture

How I built manju's real-time image text extraction and translation system — the technical decisions behind the OCR pipeline, model selection, latency optimization, and handling text in complex image layouts.

June 30, 2026Read article
Voice AILLMProductiontalkr.ai8 min read

Voice AI in Production: What 7 Years Building talkr.ai Taught Me

Real lessons from 7 years building and scaling a voice AI platform in production — context windows, latency, edge cases, and why most voice demos fail in the real world.

June 15, 2026Read article
LLMPrompt EngineeringAIProduction8 min read

Prompt Engineering in Production: What Actually Works (From Someone Who's Been Doing It Since GPT-3)

Real techniques that move the needle in production LLM systems — structured outputs, chain-of-thought routing, few-shot selection, and why most prompt engineering advice is optimized for demos, not production.

June 2, 2026Read article
Vibe CodingAI ToolsProduct EngineeringProductivity7 min read

Vibe Coding Is Real — Here's What Actually Works (and What Doesn't)

I've been building production products with AI coding tools for over a year. Here's the honest breakdown of what vibe coding changes, what it doesn't, and how I actually use it.

May 28, 2026Read article
PWAReact NativeMobileArchitecture7 min read

PWA vs. Native in 2026: When to Build Each (and When You're Making a Costly Mistake)

After building both PWAs and native apps in production, here's the honest framework for choosing between them — capabilities, distribution, performance, and the cases where the conventional wisdom is wrong.

May 15, 2026Read article
Web PerformanceCore Web VitalsSEOArchitecture8 min read

Core Web Vitals on a 5M-Request/Day Site: What Actually Moves the Score

The specific optimizations that took yomimanga from a failing Core Web Vitals score to green across LCP, CLS, and INP — and why most performance guides miss the techniques that matter most at real scale.

April 25, 2026Read article
ArchitecturePHPRedisScalingSolo Founder9 min read

How I Handle 5M+ Daily Requests on a Solo-Built Platform

The actual architecture behind yomimanga — how a solo founder built and scaled a manga platform to 5M+ daily requests without a devops team, and the decisions that made it possible.

April 10, 2026Read article
MCPAI AgentsLLMDeveloper Tools6 min read

MCP: Why the Model Context Protocol Is the Biggest Shift in AI Development

MCP (Model Context Protocol) quietly changed how AI agents are built. Here's what it is, why it matters more than most people realize, and how it changes the way I build AI products.

March 20, 2026Read article
Web3UXCryptoMobile8 min read

Self-Custodial Wallets in 2026: The UX Challenges Nobody in Web3 Talks About

Building powerx revealed every unsolved UX problem in self-custodial crypto wallets. Here's the honest breakdown of what makes Web3 wallet UX hard, what we built to fix it, and what the industry still gets wrong.

March 5, 2026Read article
Product EngineeringSolo FounderAI ToolsIndie Hacking7 min read

Product Engineering in 2026: The Case for Building Alone (and Building More)

The solo founder / product engineer model has fundamentally changed. AI tools, global infrastructure, and distribution channels mean one person can do what a team of ten did in 2020. Here's what that looks like in practice.

February 14, 2026Read article