A look at line breaking and justification, and how variable fonts will improve justified text.
Demonstration of using variable fonts to improve justification, presented at Robothon Conference 2018.
Bring your own variable font. :) The code references Gimlet Variable Font, but the font itself is not included for licensing reasons. In order to use your own variable font, update the references to Gimlet in index.html. You may also need to update the width axis calculations depending on the range of the wdth axis of your font. Currently it is set to 97 +/- 3%, where 97 is the "default" width. If your font has a different range, update this value accordingly in the CSS and JavaScript code in index.html.