DevCerts
Best practices, practical recommendations, and relevant updates on certification, exam preparation, public verification, and professional credibility for developers and IT teams.
Recent articles
Vue 3 does not become maintainable just because a team uses the Composition API and Pinia. Production structure depends on explicit boundaries between UI, reusable behavior, server access, and shared state.
For admin panels, CRM systems, SaaS dashboards, and backend-heavy teams, the Vue vs React decision is less about popularity and more about delivery model, onboarding cost, component discipline, and long-term maintainability.
Laravel 13 doesn’t introduce flashy features, but it quietly changes how modern applications should be built. If your code still looks like Laravel 8, you’re already accumulating technical debt — here’s what actually changed and what you should fix.
Laravel Octane improves performance by changing the request lifecycle, not by making inefficient code disappear. This article compares Octane with RoadRunner, Swoole, FrankenPHP, Node.js, and Go from a production engineering perspective.
User input is not dangerous because it is user input. It becomes dangerous when a system places it into the wrong execution context. This article explains how to handle search, comments, admin screens, rich text, and dangerouslySetInnerHTML without turning convenience into an injection surface.
State management in React is not one problem. The right choice depends on whether you are managing server state, client state, cached data, optimistic updates, or shared UI state. This article gives a practical decision model for using Context, Redux Toolkit, Zustand, and TanStack Query without turning every state change into architecture.
Python automation can remove repetitive work from reporting, parsing, integrations, ETL, and internal operations. The risk starts when small scripts quietly become production systems without ownership, observability, tests, or operational boundaries.
Kubernetes monitoring is not about collecting every metric first. It is about knowing which signals expose user impact, resource pressure, failed scheduling, and unsafe autoscaling before the incident spreads.
Multi-tenant PostgreSQL design is not only about where to put `tenant_id`. The real decision is how much isolation, operability, performance predictability, and restore precision your SaaS product needs as customers and data volume grow.
N+1 queries are not just an ORM inconvenience. In production, they turn simple page loads into repeated database round trips, inflate PostgreSQL latency, hide inside clean application code, and become expensive exactly when traffic grows.
Nuxt is not “Vue, but better.” It is a framework layer that pays off when rendering, routing, SEO, server endpoints, and deployment constraints need to be handled together. For many internal apps, plain Vue remains the lower-cost architecture.
PostgreSQL indexes are not a checklist item. The useful ones match real predicates, joins, uniqueness rules, and ordering needs. The harmful ones duplicate existing access paths, index low-value columns, or optimize rare reads while making every write more expensive.