Classes/Console/Core/Booting/RunLevel.php
private function buildEssentialSequence(string $identifier): Sequence
    {
        $sequence = new Sequence($identifier);
        $this->addStep($sequence, 'helhum.typo3console:coreconfiguration');
        $this->addStep($sequence, 'helhum.typo3console:providecleanclassimplementations');
        $this->addStep($sequence, 'helhum.typo3console:disabledcaching');
        $this->addStep($sequence, 'helhum.typo3console:errorhandling');

        return $sequence;
    }
private function buildEssentialSequence(string $identifier): Sequence
    {
        $sequence = new Sequence($identifier);
        $this->addStep($sequence, 'helhum.typo3console:coreconfiguration');
        $this->addStep($sequence, 'helhum.typo3console:providecleanclassimplementations');
        $this->addStep($sequence, 'helhum.typo3console:disabledcaching');
        $this->addStep($sequence, 'helhum.typo3console:errorhandling');

        return $sequence;
    }
Essential steps for a minimal usable system

@param string $identifier
@return Sequence