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Practical, opinionated writing grounded in real project work.
A practical checklist for fixing a slow Next.js site, covering images, JavaScript bundles, server vs client rendering, data fetching, fonts, caching, and third-party scripts.
Bahaj Abderrazak
Aug 11, 2026
Bahaj Abderrazak
Full-Stack Developer
Writing about engineering, accessibility, and performance.
More about me →A practical checklist for fixing a slow Next.js site, covering images, JavaScript bundles, server vs client rendering, data fetching, fonts, caching, and third-party scripts.
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.
A cost-over-time comparison between off-the-shelf SaaS tools and custom-built internal tools, covering flexibility trade-offs, data ownership, and a practical decision matrix.
UX principles specific to internal tools, permission-aware UI design, and real lessons from building admin dashboards — what separates a genuinely useful one from a cluttered one.
A clear breakdown of the differences between an MVP, a prototype, and a full product — cost and timeline differences, and a quick way to figure out which stage you're actually at.
The signs it's time to move past your MVP, a decision framework for rebuilding vs. extending your existing codebase, and how to approach that transition without losing momentum.
Realistic MVP cost ranges by complexity, what actually inflates the price (auth, payments, integrations), and how to decide between fixed price and hourly billing.
A practical, non-technical explanation of the tech stack recommended for most MVPs, why it keeps costs down without limiting future growth, and how it scales.
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Tell me what you are creating, what stage the project is at, and where you need technical support — I will respond with practical next steps.
