Examples of websites using
Founders Grotesk Mono
(Founders Grotesk Mono is a monospaced font designed by Kris Sowersby and released by Klim Type Foundry in 2014. It is available in multiple styles and weights)
with
Heldane
(Heldane is a serif font designed by Kris Sowersby and published by Klim Type Foundry. It was released in 2016 and features a wide range of styles including regular and fine optical sizes, each with varying weights and matching italics)