We're slowly getting somewhere with Pixel and Paper the CSS+Markdown to PDF editor
I should release a Beta + Code by end of next week
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If you use Vial (https://get.vial.today) to configure your keyboard on macOS and you need to map a key to backtick/tilde, mapping it to the backtick/tidle key in the Vial keyboard won’t work (you’ll get the section/plus-minus key). Instead, map it to the following code:
KC_NONUS_BSLASH
(At least that’s what worked for me on the British English Mac layout.)