Examples of websites using
DM Mono
(DM Mono is a monospaced font designed by Colophon Foundry. It is available in a range of styles and weights, providing versatility for various design projects)
with
Matter
(Matter is a sans-serif font designed by Martin Vácha and released by Displaay Type Foundry in 2017. The font family consists of multiple styles with varying weights and matching italics)