Add emoji support WIP

Waiting for jgm/pandoc#9204 (3.1.12).

Author: evenbrenden

make-slides.nix

@@ -3,7 +3,6 @@
 with pkgs;
 
 let
-  # https://github.com/jgm/pandoc/pull/9204
   font-directory = "${pkgs.freefont_ttf}/share/fonts/truetype";
   metadata-file = writeText "metadata.yaml" ''
     ---
@@ -13,6 +12,8 @@ let
     - BoldFont=FreeSerifBold
     - ItalicFont=FreeSerifItalic
     - BoldItalicFont=FreeSerifBoldItalic
+    mainfontfallback:
+    - "NotoColorEmoji:mode=harf"
     ---
   '';
 in writeShellApplication {

slides.md

@@ -14,7 +14,7 @@
 # Second slide
 
 1. [Link](http://www.link.com) item
-2. No emojis :/
+2. Emojis 🍜
 
 ---