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Practical, opinionated writing grounded in real project work.
A diagnostic checklist for slow Next.js sites, covering the most common image, bundle, and rendering issues, with practical fixes for each.
Bahaj Abderrazak
Aug 11, 2026
Bahaj Abderrazak
Full-Stack Developer
Writing about engineering, accessibility, and performance.
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A diagnostic checklist for slow Next.js sites, covering the most common image, bundle, and rendering issues, with practical fixes for each.
The actual checklist used before launching a website — performance, accessibility, and general readiness checks — so nothing embarrassing or costly slips through before visitors arrive.
A practical guide to image and asset optimization — formats, lazy loading, and CDN basics — with a quick before/after example of the impact on load time.
A section-by-section, non-technical walkthrough of a Lighthouse or PageSpeed Insights report — what each part actually means, and what's worth fixing vs. ignoring.
Common third-party API integration patterns, practical error handling and retry strategies, and how to keep webhook-based integrations reliable in production.
Single-tenant vs. multi-tenant architecture explained in plain terms, the database strategies used to implement it, and how to tell when it's genuinely needed vs. overkill.
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I also help teams document architecture, APIs, and internal knowledge.
