Sharing my customized Stylus settings for Steinberg Discourse

This works for macOS. On Windows you need to install a free font called “Inter” which is similar to Apple San Francisco.

:root {
    --heading-font-family: SF Pro Display, Inter, sans-serif;
    --font-family: SF Pro Display, Inter, sans-serif;
}
html, h1, h2, h3, h4, h5, h6 {
    font-family: SF Pro Text, Inter, sans-serif !important;
}

div.cooked p, div.cooked ul, div.cooked ol, a.topic-excerpt, textarea.d-editor-input, div.d-editor-preview {
    font-family: SF Pro Text, Inter, sans-serif;
}
button {
    font-family: SF Pro Display, Inter, sans-serif;
    text-transform: uppercase;
}