Explore the inner workings of dependency injection in C# through this comprehensive 44-minute tutorial. Gain a deep understanding of dependency injection concepts, implementation, and lifetimes. Learn how to build a custom dependency injection container and resolver with singleton and transient lifetimes. Discover the importance of knowing all possible dependencies for automatic service assembly. Follow along as the instructor demonstrates practical examples using LINQPad and provides source code on GitHub. Dive into topics such as service consumers, activator types, dependency resolution, parameter retrieval, and service lifetimes. By the end of this tutorial, master the skills to implement and utilize dependency injection effectively in your C# projects.