Ligatures were used centuries before computers were a thing. How it was done on printing presses: <https://www.dreamstime.com/royalty-free-stock-photo-ligature

Ligatures were used centuries before computers were a thing. How it was done on printing presses: <https://www.dreamstime.com/royalty-free-stock-photo-ligature-letterpress-printing-blocks-image24494305 https://www.dreamstime.com/royalty-free-stock-photo-ligature...>. Also, this problem applies more to countries outside of the first world.