Engineering & Product Guides for Founders

Buying is faster and building gives you control, but the real answer depends on 3-year cost, fit, and what makes you different. A practical build vs buy framework, including AI.

Portfolios all look good. The answers to these 12 questions reveal who owns your code, who actually builds it, and what happens when scope changes or the project ends.

Auth, payments, notifications, encryption, data consistency, ACID transactions — six systems that work quietly until scale finds their limits.

Most admin panels store customer records but can't explain behaviour. A founder's guide to the two dashboard layers you actually need, and how to build both.

Firebase, Twilio, MSG91, Plivo, SES, Postmark, and Resend compared on real cost and fit — plus a simple framework for choosing SMS, WhatsApp, or email verification.

Not every AI feature earns its place in your SaaS. Here's how to tell which ones drive revenue, which users actually want, and which are just marketing.

Subscription bugs are costly once live. Here's how to test StoreKit, sandbox purchases, TestFlight builds, and server notification webhooks before you ship.

Static content is dead. Learn how adaptive, context-aware content delivery keeps users coming back — and why most apps still get it wrong.

Pricing isn't a guess — it's a calculation involving ARPU, CAC payback, retention, and price-to-value. Here's a practical framework for setting your number.

Launching isn't a single event — it's a sequence that starts months before your app is in stores. Here's the order that actually works, from waitlist to post-launch growth.