Codex as a Daily Driver: Plan, Build, Review, and Verify Mobile Apps

This practical session will show how to use Codex as a daily engineering partner, not just a code generator. Using a mobile application as an example, we will explore how Codex can help understand a codebase, plan changes, implement features, review code, run tests, and verify results. We will also look at how tools such as Figma, skills, plugins, MCP integrations, and project instructions can improve the development workflow while keeping the engineer in control of code quality and final decisions.