psalm.xml

<?xml version="1.0"?>
<psalm  errorLevel="1" resolveFromConfigFile="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="https://getpsalm.org/schema/config" xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd" findUnusedBaselineEntry="true">
    <projectFiles>
        <directory name="src" />
        <ignoreFiles>
            <directory name="vendor" />
        </ignoreFiles>
    </projectFiles>
</psalm>