The article advocates for organizing codebases vertically by feature instead of horizontally by technical layer, keeping related code close together to reduce mental overhead. This approach makes navigating and scaling the codebase more intuitive for developers.
The article discusses a PHP function that uses Roman numerals (Unicode characters) and the challenge of vertically aligning them in code due to the varying widths and baselines of the special Unicode numeral characters (like Ⅿ, Ⅽ, Ⅹ). The author explores CSS and code formatting techniques to achieve better visual alignment.