Notes on building.
Guides on mobile apps, web platforms and AI products. Cost breakdowns, stack comparisons and how we ship.
Auth0 vs Clerk vs Firebase Auth: Best Auth for Startups
Choosing the wrong authentication provider early can cost you weeks of migration work later. Here is a direct comparison of Auth0, Clerk, and Firebase Auth across pricing, developer experience, features, and enterprise readiness so you can pick the right one from the start.
Technology · Feb 12, 2026 · 14 min read
App Store Rejection: The Most Common Reasons and How to Avoid Them
Getting rejected by the App Store or Google Play days before your launch is one of the most demoralizing things that can happen to a product team. Here is every major rejection reason, explained clearly, with concrete steps to fix each one before you submit.
Technology · Feb 12, 2026 · 14 min read
How to Set Up Application Monitoring and Alerting for Your Product
Most teams discover their app is broken when a user complains. Proper application monitoring means you know before they do. Here is how to build a monitoring stack that actually works.
Technology · Feb 11, 2026 · 14 min read
How to Migrate Your App from One Cloud Provider to Another
Switching cloud providers is not a weekend project, but it is also not the nightmare most teams fear. With the right sequence of steps, you can migrate with zero downtime and full rollback capability.
Technology · Feb 11, 2026 · 14 min read
How to Handle a Production Outage Without Losing Your Users
Every production system goes down eventually, including Google's and AWS's. What separates teams that keep users through an outage from teams that don't is not luck, it is process.
Technology · Feb 11, 2026 · 13 min read
How to Set Up CI/CD for Your Startup Without a DevOps Team
Manually deploying code is a tax on your team's time and a direct path to production incidents. A well-built CI/CD pipeline pays for itself in the first week.
Technology · Feb 11, 2026 · 14 min read
How to Accept International Payments Without Getting Burned
Expanding internationally means dealing with currency conversion, local payment methods, cross-border fraud, and tax compliance across dozens of jurisdictions. Here is how to handle it without drowning in complexity.
Technology · Feb 10, 2026 · 13 min read
How to Load Test Your App Before Launch (And What Happens If You Don't)
Your app works great with 10 users. What about 10,000 simultaneous users? Load testing before launch reveals bottlenecks that crash production. Here is how to find them before your customers do.
Technology · Feb 10, 2026 · 13 min read
How to Optimize Your App's Core Web Vitals in 2026
Google uses Core Web Vitals as a ranking factor. Slow LCP, poor INP, and layout shifts hurt your SEO and your conversion rates. Here are the fixes that actually move the needle.
Technology · Feb 10, 2026 · 14 min read
How to Scale a Database from 10K to 10M Rows Without Starting Over
Your database worked fine at 10,000 rows. Now you have 500,000 rows and queries are crawling. Here is how to scale PostgreSQL, MySQL, and MongoDB without a painful migration.
Technology · Feb 10, 2026 · 14 min read
Database Migration Strategies That Won't Destroy Your Product
Most database migrations fail not because the SQL is wrong, but because the deployment strategy is wrong. Here is how to change your schema in production without taking your app offline or corrupting data.
Technology · Feb 10, 2026 · 13 min read
How to Handle User Data Deletion Requests Without Breaking Your App
A user clicks 'Delete my account' and your entire system panics. Foreign key violations, orphaned records, analytics gaps, and backup headaches. Here is how to architect data deletion that actually works.
Technology · Feb 9, 2026 · 13 min read