Zend certified PHP/Magento developer

Magento 2 Composer Install Allowed memory size exhausted

I am installing Magento 2.4.3 community edition in my local machine.

Machine Specifications:

1.Linux (Ubuntu OS)
2.Nginx 
3.Php 7.3 and Mysql

I’ve set the memory limit as -1 (unlimited) and all other basic settings.

I am using the following command to install the community edition in my local

composer create-project --repository-url=https://repo.magento.com/ magento/project-community-edition:2.4.3 magento243

But during the installation i am getting the following error message.

PHP Fatal error:  Allowed memory size of 2147483648 bytes exhausted

For your further reference herewith I’ve attached a screen.
enter image description here

Advance thanks for your better support.