How to use Conn() in separate scripts?

PHPMaker General Discussion (PHPMaker)
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In 2025 i had some separate script outside of phpmaker. if i added the following i was able to use $conn. how do you go about this in 2026?

namespace PHPMaker2026\\DEMO;

use DI\\ContainerBuilder;

$dir = dirname(**DIR**);

// Autoload
require_once $dir."/vendor/autoload.php";

// PHPMaker core files
require_once $dir."/src/constants.php";
require_once $dir."/src/config.php";
require_once $dir."/src/phpfn.php";
require_once $dir."/src/userfn.php";

// Build DI container
$containerBuilder = new ContainerBuilder();
$containerBuilder->useAttributes(true);
$containerBuilder->addDefinitions( $dir."/src/definitions.php");
DispatchEvent(new ContainerBuildEvent($containerBuilder), ContainerBuildEvent::NAME);
$container = $containerBuilder->build();
$conn = Conn(); // PHPMaker DB connection
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