Web Applications
Reducing API Costs in Next.js Applications
Next.js API costs grow faster than traffic when data is fetched more often than it changes. How to cache, dedupe and fetch less, step by step.
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Web Applications
Why Your React App Re-Renders Twice on Every Click
Your React app renders twice on a click. Sometimes it is a real bug, sometimes it is Strict Mode. How to tell which, and the fixes that actually work.
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Web Applications
Server Components vs Client Components: Choosing Without Guessing
Server vs client components in Next.js: why adding “use client” until errors stop ships extra JavaScript, and the one question that decides each case.
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Web Applications
Handling Auth Redirects in Next.js Without the Flicker
Next.js auth redirects that flash private content come from deciding too late, in the browser. How to check the session on the server so nothing shows.
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SaaS
Authentication Mistakes Found in Small SaaS Apps
The SaaS authentication mistakes I see most in small codebases, from client-side checks to weak sessions and resets, and how to close each hole.
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SaaS
Why Your SaaS Trial-to-Paid Conversion Is Stuck
Trial-to-paid conversion stuck? It is rarely pricing. Find your activation moment, fix where trials die, and measure the funnel one step at a time.
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SaaS
Database Indexes That Quietly Save SaaS Apps From Slowdowns
Why a SaaS app slows down as data grows, which database indexes to add first, how to find slow queries with EXPLAIN, and when indexes hurt.
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SaaS
Rate Limiting a SaaS API Without Punishing Real Users
API rate limiting that stops abuse without hurting real customers: which key to limit on, token buckets, 429 and Retry-After, and a safe rollout.
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Chrome Extensions
Building a Chrome Extension With React: Lessons Learned
Lessons from building a Chrome extension with React: setup, why popup state vanishes, CSP rules, message passing and the mistakes to avoid.
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Chrome Extensions
How to Store Data Securely in a Chrome Extension
How to keep Chrome extension storage secure: which storage area to use, why API keys never belong in the bundle, and a checklist to run before release.
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