Notes on building.
Guides on mobile apps, web platforms and AI products. Cost breakdowns, stack comparisons and how we ship.
TanStack Query vs SWR vs Apollo Client: Data Fetching in 2026
A no-nonsense comparison of TanStack Query, SWR, and Apollo Client covering caching, mutations, suspense, bundle size, and how React Server Components reshape the decision.
Technology · Mar 10, 2026 · 13 min read
How Much Does It Cost to Build a Coaching Platform in 2026?
The coaching and online course market is worth $50B+, but building a custom platform to compete with Teachable or Kajabi requires real investment. Here is what it costs.
Cost & planning · Mar 10, 2026 · 14 min read
How to Build an On-Demand Laundry and Dry Cleaning App in 2026
On-demand laundry is a proven marketplace model with 25%+ margins. Here is how to build the customer app, driver app, and provider dashboard from scratch.
How to build · Mar 10, 2026 · 15 min read
How to Build a Custom Restaurant POS System from Scratch in 2026
Toast and Square dominate restaurant POS, but custom systems win when you need vertical features they will never build. Here is how to build one that works offline and scales.
How to build · Mar 10, 2026 · 15 min read
How to Build a Coaching and Online Course Platform in 2026
Teachable and Kajabi take 5 to 10% of your revenue. Here is how to build a custom coaching platform that you fully own, from course delivery to community features.
How to build · Mar 10, 2026 · 15 min read
How to Build an On-Demand Home Cleaning App Like Handy in 2026
On-demand home cleaning is a $10B+ market growing at 18% annually. Here is how to build the customer booking flow, cleaner dispatch system, and marketplace infrastructure.
How to build · Mar 10, 2026 · 15 min read
How to Build a Childcare and Daycare Booking App in 2026
The childcare market exceeds $500B globally with massive digitization demand. Here is how to build a booking app that daycare providers and parents actually want to use.
How to build · Mar 10, 2026 · 14 min read
How to Build a Project Management Tool Like Linear in 2026
Linear proved that project management tools do not have to be bloated. Here is how to build a fast, focused PM tool with real-time collaboration and modern architecture.
How to build · Mar 10, 2026 · 15 min read
AG-UI Protocol: Building Agent-Powered UIs for Your App in 2026
AG-UI completes the MCP/A2A/AG-UI trifecta that every CTO building agent-powered products needs. Here is how it works and how to implement it in your applications.
Technology · Mar 10, 2026 · 14 min read
Qwik vs SolidJS vs Preact: Lightweight Frontend Frameworks in 2026
A battle-tested comparison of Qwik vs SolidJS vs Preact covering performance, bundle size, DX, SSR, ecosystem maturity, and hiring realities in 2026.
Technology · Mar 9, 2026 · 13 min read
WebSockets vs SSE vs Long Polling: Real-Time Patterns in 2026
Real-time architecture decisions shape every chat, notification, and collaborative app you ship. Here is how to pick between WebSockets, SSE, and Long Polling without breaking your infrastructure.
Technology · Mar 9, 2026 · 13 min read
How to Price AI Features: Usage, Seat, and Bundled Pricing in 2026
A practical, opinionated guide to pricing AI features in 2026. Compare usage, seat, credits, and bundled models with real examples from Notion, Intercom, and Linear.
AI & strategy · Mar 9, 2026 · 14 min read