Break down complex code structures into simpler, more readable forms. This includes avoiding deep nesting, extracting complex logic into helper functions, simplifying boolean expressions, and reducing code duplication. Key practices: - Use `match` statements instead of multiple `if` conditions for the same variable - Extract repeated logic into helper functions rather than duplicating code - Hoist complex expressions out of tuple/struct construction into separate variables - Simplify boolean expressions (e.g., use `!(a || b)` instead of separate conditions) - Avoid deep nesting by using early returns or extracting functions - Use functional patterns like `unwrap_or()` instead of imperative `if/else` blocks - Wrap repetitive code patterns in helper functions Example of improvement: ```rust // Before: Complex nested conditions if filename == "package.json" { // logic } if filename == "package.json" || filename == "pom.xml" { // more logic } // After: Clear match statement match (generate_opts.author_url, filename) { (Some(url), "package.json" | "pom.xml") => replacement.replace(AUTHOR_URL_PLACEHOLDER, url), (None, "package.json") => replacement.replace(AUTHOR_URL_PLACEHOLDER_JS, ""), (None, "pom.xml") => replacement.replace(AUTHOR_URL_PLACEHOLDER_JAVA, ""), _ => {}, } ``` This approach improves code maintainability, reduces cognitive load, and makes the codebase more approachable for new contributors.