This probject is no longer on GitHub. (See Software Freedom Conservancy's Give Up GitHub site for details.)
You can now find this project at https://www.fdsd.co.uk/convert-coord/ instead. Clone the repository with:
git clone git://www.fdsd.co.uk/coordinate-converter.git
Any use of this project's code by GitHub Copilot, past or present, is done without my permission. I do not consent to GitHub's use of this project's code in Copilot.