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Sharing my experiences, learnings, and adventures in tech and beyond.

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Real User Monitoring: Why Lab Data Lies and Field Data Wins

How RUM gives you the actual performance numbers your users experience — and why Lighthouse scores alone are misleading.

A practical guide to Next.js image optimization — the formats, the config, and the real-world results from optimizing matthewswong.com.

A decision framework for choosing between ISR, SSR, and SSG in Next.js App Router — with real performance numbers and the configs I ship.

How connection pooling works, why your NestJS app will eventually exhaust PostgreSQL connections, and the PgBouncer config I run in production.

How tsvector and GIN indexes make PostgreSQL a capable search engine for small-to-medium datasets — and when you actually need Elasticsearch.

Why offset pagination falls apart on large datasets and how to implement cursor pagination in a NestJS API that stays fast at any page depth.

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