PHP 5 / 7

PHP ZIP Extension

PHP JSON Extension
PHP GD Extension (Graphics Library for Icon)PHP GMP Extension for Mathematics Library 

mkisofs / genisoimage for ISO creation
All of these can be installed on Linux / Debian / Centos platforms mean it should be able to work on your system fine.

Preferably 2+ GB with at least 1 GB Swap, 1 GB RAM Systems REQUIRE 1+ GB Swap Space

Slow Systems may need Custom PHP INI Tweaks that can be reverted After Builds

This requires a significant amount of processing power and WILL Slow your server down during Exporting and Sending to the Build Infrastructure, but only during this time. This is a constant work in progress and although many bugs have been worked out, I am only one person, so if you can't deal with troubleshooting, then this plugin is NOT for you!