Notes on building.
Guides on mobile apps, web platforms and AI products. Cost breakdowns, stack comparisons and how we ship.
How to Build a Digital Health Clinic Platform from Scratch in 2026
Hims and Ro generated over $2B combined in 2025 by pairing telemedicine with subscription pharmacy. Here's how to build a digital health clinic that scales.
How to build · Mar 15, 2026 · 15 min read
How to Build a Virtual Try-On App with AR for Retail in 2026
AR try-on lifts conversion 80-90% for apparel and beauty. Here's how to build a virtual try-on app that retail DTC brands can actually deploy.
How to build · Mar 15, 2026 · 14 min read
How to Build a Blood Donation and Donor Matching App in 2026
Blood Donor and BloodApp work with Red Cross chapters to match donors with hospitals in minutes. Here's how to build a blood donation app with real impact.
How to build · Mar 15, 2026 · 13 min read
How to Build an AI Podcast Editor and Production Tool in 2026
Descript, Riverside AI, and Podcastle turned podcast editing from a 6-hour slog into a 20-minute task. Here's how to build an AI podcast editor that creators pay for.
How to build · Mar 15, 2026 · 14 min read
How to Build a Resale and Thrift Marketplace App Like Poshmark in 2026
Resale hit $200B in 2025 with Poshmark, Vinted, and Depop leading. Gen Z buys resale 3x more than retail. Here's how to build a resale marketplace they love.
How to build · Mar 15, 2026 · 14 min read
How to Build an AI Study Buddy and Homework Helper App in 2026
Photomath, Socratic, and ChatGPT Study Mode are the #1 downloaded EdTech apps. Parents pay $10-$20/month for step-by-step help. Here's how to build one.
How to build · Mar 15, 2026 · 14 min read
Yjs vs Automerge vs Liveblocks: CRDT Frameworks for Real-Time Apps in 2026
If you are building the next Notion, Figma, or Linear, your CRDT choice will shape offline support, cost, and team velocity for years. Here is the real 2026 comparison between Yjs, Automerge, and Liveblocks.
Technology · Mar 14, 2026 · 14 min read
React Compiler vs Million.js: React Performance Optimization in 2026
React Compiler shipped GA and Million.js claimed 70% performance gains. Both promise faster React apps with no code changes. Here is the honest 2026 comparison of when each one actually delivers.
Technology · Mar 14, 2026 · 13 min read
How to Build a Compound AI System with Multi-Model Orchestration in 2026
A practical compound AI system guide covering routing, RAG, orchestration frameworks, evaluation, and production scaling with Claude, GPT-4.5, and Gemini 2.5 Pro.
AI & strategy · Mar 14, 2026 · 14 min read
How to Build Computer Use Agents for Browser Automation in 2026
A practical, opinionated computer use agents guide covering Claude, Operator, Mariner, Browserbase, Stagehand, and the architecture patterns that actually work in production.
AI & strategy · Mar 14, 2026 · 14 min read
AI for HR: Performance Reviews, Engagement, and Retention in 2026
A pragmatic guide to AI for HR performance reviews, engagement analytics, attrition prediction, bias detection, and EU AI Act compliance in 2026.
AI & strategy · Mar 14, 2026 · 13 min read
How to Write an AI Acceptable Use Policy for Your Startup in 2026
A founder's guide to writing an AI acceptable use policy that actually works in 2026. Cover ChatGPT, Claude, Cursor, Copilot, data handling, IP, and rollout without killing productivity.
AI & strategy · Mar 14, 2026 · 13 min read