Install twemoji-ttf, twemoji-color-font displays as outline

hosts/desktop.nix

@@ -54,6 +54,7 @@ in
       mplus-outline-fonts.osdnRelease
       noto-fonts
       (nerdfonts.override { fonts = [ "FiraCode" ]; }) # required for icons
+      (pkgs.callPackage ../twemoji.nix {})
     ];
   };
 }

twemoji.nix

@@ -0,0 +1,26 @@
+{ lib, stdenv, fetchurl }:
+
+let
+  _fedrel = "2.fc37";
+in
+stdenv.mkDerivation rec {
+  pname = "ttf-twemoji";
+  version = "14.0.2";
+
+  src = builtins.fetchTarball {
+    url = "https://kojipkgs.fedoraproject.org/packages/twitter-twemoji-fonts/${version}/${_fedrel}/noarch/twitter-twemoji-fonts-${version}-${_fedrel}.noarch.rpm";
+    sha256 = "sha256:11ay3jc4qd3z1mnijnwdns4bi22y204lva7l7vkazybx1nzrwscl";
+  };
+
+  dontBuild = true;
+
+  installPhase = ''
+    install -Dm755 share/fonts/twemoji/Twemoji.ttf $out/share/fonts/truetype/Twemoji.ttf
+  '';
+
+  meta = with lib; {
+    description = "Twitter Color Emoji for everyone.";
+    homepage = "https://github.com/twitter/twemoji";
+    license = with licenses; [ cc-by-40 mit ];
+  };
+}