Managing Elixir and Phoenix Dependencies with Mix

As your Phoenix web applications grow, keeping your external packages secure, updated, and properly configured becomes critical to preventing build failures and runtime errors. This text-based course guides you through Elixir dependency management from the ground up, giving you the skills to handle package configurations, versioning, and environment-specific setups with confidence. By completing this course, you will transform how you maintain your Elixir projects, ensuring your application architecture remains clean, secure, and easy to update over time. What you'll learn: - Understand the core roles of Hex, Mix, and the mix.exs configuration file - Configure runtime and build-time dependencies specifically for Phoenix web applications - Manage semantic versioning constraints to ensure stable and predictable builds - Resolve complex dependency conflicts and handle nested transitive dependencies - Secure your application by auditing packages and managing lockfiles efficiently - Optimize your application footprint by separating development, test, and production dependencies We begin with foundational definitions of the Elixir ecosystem, ensuring you understand the mechanics of package compilation, before moving step-by-step through practical configuration scenarios, lockfile strategies, and modern security auditing tools. This course is designed for beginner Elixir and Phoenix developers who want to master project configuration and package maintenance. No prior experience with complex build tools is required. Start reading today to build a solid foundation in Elixir project maintenance.