This article presents a methodology for customizing third-party packages in PHP projects using Composer. Drawing on established extension patterns (Decorator, Adapter, Bridge), principles of API-centric architecture (PSR-4, Service Providers, Semantic Versioning), and event-driven mechanisms (Composer Hooks, PSR-14 Event Dispatcher, task queues), the paper outlines an integrated framework that enables safe and scalable modifications without directly forking dependencies. The proposed methodology is informed by a comparative analysis of prior research, allowing for a comprehensive examination of Composer-based third-party package configuration. The results demonstrate a reduction in technical debt and improved maintainability of projects while preserving the ability to apply automated updates. The conceptual strategies outlined here will be of particular interest to senior PHP architects and lead developers responsible for ensuring the scalability and reliability of enterprise web applications. Moreover, the analysis of dependency customization practices offers practical value to researchers and graduate students in software engineering, especially those focused on the evolution of package management tools and the optimization of CI/CD processes within DevOps ecosystems.

Composer, package customization, Decorator, Adapter, Service Provider, Bridge, PSR-4, Semantic Versioning, Composer Hooks, Event Dispatcher, methodology

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