Stone.js API
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    Variable DEFAULT_APP_MODULES_PATTERNConst

    DEFAULT_APP_MODULES_PATTERN: "app/**/*.{ts,tsx,js,jsx,mjsx}" = 'app/**/*.{ts,tsx,js,jsx,mjsx}'

    The files that make up an application's source.

    This is the one definition of "the app" shared by the tools that need to find it: the CLI scans it to decide how to build, and @stone-js/testing scans it to boot the same modules a test would otherwise have to list by hand. Keeping it here is what stops those two answers from drifting apart.