Conflake

A batteries included, convention-based configuration framework for Nix Flakes.

Features

• Auto-load files into outputs attribute set according to project layout
• Function-based declaration
• Provide outputs and perSystem options for flexible configuration
• Handle generating per-system attributes, with nix-systems support
• Given package definitions, generates package and overlay outputs
• Enable nix fmt for common file types
• Easy to write and run tests
• Extensible using the module system

Why I Need This

If you are using builtins.readDir to manage your Nix configuration, this project can help you minimize much of the boilerplate code.

A shared framework like this makes it easier for readers to navigate the project's file structure.

Trade-offs

This project introduces substantial amount of code to your project, and any bugs could prevent your configuration from building successfully.

There is a performance overhead with extra runtime checks and module evaluations when compared to handcrafted imports.

Running nix flake update without reviewing the changes and updating your code accordingly may disrupt your project.

Adding an additional inputs entry may not be appropriate for flakes intended to be used by others.

Misusing the module system can result in infinite recursion errors.

Nix files or folder that you don't want auto-loaded need to begin with _.