Notes on building.
Guides on mobile apps, web platforms and AI products. Cost breakdowns, stack comparisons and how we ship.
How to Build a Vacation Rental Management Platform in 2026
Airbnb and Vrbo take 15% of every booking. Property managers are over it. In 2026, independent PMS platforms are the fastest-growing segment of vacation rental tech. Here is how to build one that operators actually stick with.
How to build · Mar 13, 2026 · 15 min read
How to Build a Medical Imaging AI App for Radiology in 2026
An opinionated playbook for medical imaging AI development in 2026, from picking a clinical problem to shipping FDA cleared software inside radiologist workflows.
How to build · Mar 13, 2026 · 15 min read
How to Build an AI Personal Shopping Assistant for E-Commerce in 2026
A field guide to AI shopping assistant development in 2026: architecture, RAG over your catalog, tool calling, personalization, measurement, and a launch plan.
How to build · Mar 13, 2026 · 14 min read
How to Build a Sleep Tracking and Sleep Coaching App in 2026
Sleep is the next billion dollar wellness category. Here is exactly how to ship a sleep tracking and coaching app in 2026, from sensor data and accelerometer analysis to AI nudges, HealthKit integration, and the monetization model that actually retains users.
How to build · Mar 13, 2026 · 13 min read
How to Build a Pickleball and Sports League Management App in 2026
A practical, opinionated playbook for building a pickleball and sports league management app, covering court booking, matchmaking, brackets, and the tech stack we ship at Kanopy Labs.
How to build · Mar 13, 2026 · 13 min read
How to Build a Used Car Marketplace App Like Carvana in 2026
A founder's playbook for used car marketplace development in 2026, covering inventory sourcing, VIN data, valuation, financing, and the unit economics that actually work.
How to build · Mar 12, 2026 · 15 min read
How to Build a Tour and Activity Booking App Like Viator in 2026
Viator and GetYourGuide take 25% of every booking. That is the reason tour operators are quietly building their own apps in 2026. Here is how to build one that actually converts and scales.
How to build · Mar 12, 2026 · 14 min read
How to Build an AI-Powered Email Assistant for Your SaaS in 2026
AI email assistants like Superhuman AI and Shortwave are the breakout productivity category of 2026. Here is how to build one that actually understands your users' inboxes.
How to build · Mar 11, 2026 · 15 min read
How to Build an AI Customer Success Platform for SaaS in 2026
Gainsight and Vitally charge $30K+ per year. Here is how to build an AI-powered customer success platform that predicts churn, automates playbooks, and drives expansion revenue.
How to build · Mar 11, 2026 · 15 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