Augmented reality (AR) is a technology that overlays digital information onto the real world, typically experienced through a smartphone or other wearable device. AR is used in many applications, such as gaming, advertising, and education. Popular AR platforms include Apple ARKit, Google ARCore, and Vuforia. Start now Continuous delivery (CD) is the practice of automating the process of deploying code changes to production environments. CD aims to provide fast and reliable software delivery, with minimal risk and downtime. CD is an essential part of DevOps and agile software development. Popular CD tools include Ansible, Puppet, and Chef.