composer.json

{
    "config": {
        "platform": {
            "php": "8.1"
        }
    },
    "autoload": {
        "psr-4": {
            "Bitrix\\Main\\Lib\\": "bitrix/main/lib",
            "Bitrix\\Main\\Components\\": "bitrix/main/components",
            "Bitrix\\Main\\Solutions\\": "bitrix/main/solutions",
            "Bitrix\\Main\\Sites\\": "bitrix/main/sites",
            "Bitrix\\Main\\Layouts\\": "bitrix/main/layouts",
            "Sites\\": "sites"
        }
    },
    "require": {
        "guzzlehttp/psr7": "^1.7",
        "psr/http-server-middleware": "^1.0",
        "php-di/php-di": "^6.3",
        "symfony/dependency-injection": "^5.1",
        "twig/twig": "^3.2",
        "sabberworm/php-css-parser": "^8.3",
        "twbs/bootstrap": "4.0.0",
        "psr/cache": "1.0.0",
        "ext-memcache": "*",
        "psr/log": "^3.0",
        "monolog/monolog": "^2.8",
        "filp/whoops": "^2.14"
    }
}