Notes on building.
Guides on mobile apps, web platforms and AI products. Cost breakdowns, stack comparisons and how we ship.
How to Build a Real-Time AI Translation and Localization App
Real-time translation used to require million-dollar budgets and dedicated ML teams. In 2026, you can ship a production-grade multilingual app in 8 to 12 weeks with the right architecture and vendor stack.
How to build · Apr 26, 2026 · 15 min read
How to Build an AI-Powered Code Review Pipeline for Dev Teams
Manual code reviews are slow, inconsistent, and drain your senior engineers. Here is how to build an AI-powered code review pipeline that catches real bugs, enforces standards, and ships faster.
How to build · Apr 26, 2026 · 15 min read
How to Build an AI-Powered Photo and Video Editing App in 2026
AI editing tools are eating Adobe's lunch. Here is how to build a production-grade photo and video editing app with generative AI, from model selection to GPU infrastructure to monetization.
How to build · Apr 26, 2026 · 15 min read
How to Build a Real-Time Collaboration Whiteboard App in 2026
Whiteboard apps sit at the intersection of real-time sync, canvas rendering, and spatial data structures. Here is how to build one without reinventing Figma from scratch.
How to build · Apr 26, 2026 · 15 min read
How to Build a Multi-Vendor E-Commerce Marketplace From Scratch
Multi-vendor marketplaces capture more GMV than single-seller stores because they solve inventory risk by letting others stock the shelves. Here is exactly how to build one that vendors actually want to sell on.
How to build · Apr 25, 2026 · 15 min read
How to Build an AI-Powered Fitness Coaching App From Scratch
AI coaching is replacing static workout templates across the fitness industry. This guide covers every technical and business decision involved in building an AI fitness coaching app that actually adapts to users in real time.
How to build · Apr 25, 2026 · 15 min read
How to Build a Vertical AI Agent for Your Industry From Scratch
Generic LLMs plateau fast in specialized domains. This guide walks you through building a vertical AI agent from scratch, covering domain modeling, data strategy, evaluation, and production deployment for your specific industry.
How to build · Apr 25, 2026 · 15 min read
How to Build an Encrypted Real-Time Messaging App From Scratch
Most teams bolt encryption onto a chat app as an afterthought and end up with a system that leaks metadata, breaks on group messages, or collapses under key rotation. If you want to build an encrypted messaging app that actually protects users, encryption has to be the foundation, not a feature flag.
How to build · Apr 24, 2026 · 14 min read
How to Build an Autonomous AI QA Testing Pipeline for Your App
Manual QA is a bottleneck that burns budget and still lets bugs through. This guide walks you through building an AI-powered testing pipeline that generates tests from user flows, heals broken selectors automatically, and plugs directly into your CI/CD process.
How to build · Apr 24, 2026 · 14 min read
How to Build an AI-First Internal Knowledge Base for Your Team
Your team wastes hours every week searching for answers buried in Slack threads, Google Docs, and Confluence pages. An AI-powered internal knowledge base fixes this by actually understanding questions and pulling the right answers from every source your team uses.
How to build · Apr 23, 2026 · 14 min read
How to Build a Weather Data and Hyperlocal Forecast App in 2026
Most weather apps are just thin wrappers around the same stale government data. If you want to build something people actually pay for, you need hyperlocal ML forecasts, sub-minute severe weather alerts, and a data pipeline that does not fall over during a hurricane.
How to build · Apr 23, 2026 · 14 min read
How to Build a Generative AI Design Tool for Non-Designers 2026
Canva proved that non-designers will pay for simple tools. Generative AI makes it possible to go further: real design output from plain English prompts. Here is how to build the product, what it actually costs, and where the real moats are.
How to build · Apr 23, 2026 · 14 min read