What is confidence?

Confidence is a sample application that shows different ways to handle configuration in modern software. Configuration is the way an app knows key details about its environment, things like which database to connect to, what port to run on, or whether it's in testing or production mode. Instead of hardcoding these details directly into the program, well-built apps read them from outside sources so the same code can run in different places without changes. This project exists to demonstrate the various options developers have for managing that setup. Modern apps can pull configuration from several places: environment variables, files on disk, command-line arguments, or remote services. The application serves as a working reference for how these approaches look in practice, giving developers something concrete to study rather than just reading documentation. Someone learning how to structure configuration for their own application would find this useful. For example, a developer building a web service might wonder whether to use a config file, environment variables, or a combination of both. By examining this sample, they can see a real implementation and adapt the pattern to their own project. It is essentially a teaching tool rather than something you would deploy to serve real users. The README doesn't go into much detail about which specific configuration methods are demonstrated or how the application is structured internally. What it does make clear is that this is an example project, meant to be read and learned from rather than used as a production tool. It's written in Go, so it will be most approachable for people working in that language, though the general concepts around configuration apply broadly across most programming languages.