nix-conditionals

What problem does it solve?

This skill helps replace verbose if-then-else blocks in Nix configurations with reusable lib.mkIf, lib.optionals, lib.optionalString, and lib.mkMerge patterns, reducing duplication and improving maintainability.

Core Features & Use Cases

• Use lib.mkIf to conditionally enable config blocks
• Use lib.optionals to include conditional list items
• Use lib.optionalString to conditionally inject strings
• Use lib.mkMerge to combine conditional blocks
• Apply in large Nix configurations across environments to tailor settings for different machines or users.

Quick Start

Add a small Nix snippet using lib.mkIf and lib.optionals in your configuration and run your regular rebuild to verify conditional blocks.