Magento 1.9.x Architecture Guide

Installation

Development environment

Theme customization

Module extension

Most used Magento Extensions (By Category)

ReactJS and Redux for new theme

Multiple stores

REST API Communication

NodeJS as server

Ionic 2

Packaging

Deploying

Scaling

Devops

Continuous Integration and Continuous Delivery

Testing

Performance Testing

Install new patches onto the current release

Considerations to launch into a staging environment

Read all the User Guide from Magento site

Shopify

Competency