t3ignition is a TYPO3 extension that provides a better error debugging experience with the use of Ignition. It is basically a wrapper to easily use Ignition in TYPO3.
The setup process is easy, but not flawless. First require the extension via Composer.
composer require visuellverstehen/t3ignition --dev
Then you have to manually register the DebugExceptionHandler in your AdditionalConfiguration.php file like so:
$GLOBALS['TYPO3_CONF_VARS']['SYS']['debugExceptionHandler'] = \VV\T3ignition\Error\DebugExceptionHandler::class;