When configuring CI workflows, include only the extensions, tools, and settings that are necessary for the specific tests being run. Avoid adding unnecessary PHP extensions (such as `xml` or `xdebug`) to workflow configurations unless they're explicitly required. Similarly, keep coverage disabled (`coverage: none`) in CI pipelines by default to improve performance. Example: ```yaml - name: Setup PHP uses: shivammathur/setup-php@v2 with: php-version: 8.3 extensions: dom, curl, libxml, mbstring, zip, pcntl, pdo, pdo_mysql, :php-psr coverage: none ``` This approach keeps CI workflows efficient, reduces execution time, and avoids potential issues from unnecessary dependencies.