https://www.typotheque.com/fonts/calcula
Calcula is a display typeface that uses smart OpenType features to explore the space between lettering and typeface design, creating maze-like spaces between letters. Inspired by the geometric Kufic style of traditional Arabic calligraphy, Calcula is a functional OpenType typeface, with design principles that are rooted in lettering, in that each letter reacts to neighbouring letters, adapting to its context.