I maintain a small open-source calculator that prices what it costs to close an unexplained gender pay gap under the EU Pay Transparency Directive (2023/970). You give it a CSV of employees (salary, gender, grade, tenure, category), and it prices two options: minimum compliance and full equalisation. It ships as a static HTML page and, separately, as an Excel workbook with the same calculation in live formulas. The page makes no network requests at all. It doesn't promise to skip logging or t...