sax2 nerdfont

flake.nix

@@ -60,5 +60,7 @@
     };
 
     keyboardLayouts.fox = ./shared/fox.xkb;
+
+    fonts.sax2nf = import ./shared/sax2nf.nix { pkgs = nixpkgs.legacyPackages.x86_64-linux; };
   };
 }

home/rachel.nix

@@ -1,7 +1,7 @@
 { pkgs, cornelis, cornelis-vim, agda, ... }:
 let username = "rachel";
     homeDir = "/home/${username}";
-    SAX2 = import ../shared/sax2.nix { inherit pkgs; };
+    SAX2NF = import ../shared/sax2nf.nix { inherit pkgs; };
     hpkgs = pkgs.haskellPackages;
     hls_wrapper = pkgs.writeScript "hls" ''
       export PATH="${hpkgs.haskell-language-server}/bin:$PATH"
@@ -64,7 +64,7 @@ in
       obs-studio
       file
       gimp
-      SAX2
+      SAX2NF
       twemoji-color-font
       bat
       steam
@@ -327,7 +327,7 @@ in
         draw_bold_text_with_bright_colors = false;
         scrolling.history = 0;
         font = {
-          normal.family = "SAX2";
+          normal.family = "SAX2 Nerd Font";
           size = 11;
         };
         colors = {

shared/sax2.nix

@@ -1,14 +0,0 @@
-{ pkgs, ... }:
-pkgs.fetchurl {
-  name = "SAX2";
-  url = "https://abrudz.github.io/SAX2/SAX2.ttf";
-  sha256 = "sha256-DgvDWXO2fnKZNu9EvQOq8GNMTU3PUdp85+/0ZHdRXZc=";
-
-  recursiveHash = true;
- 
-  downloadToTemp = true;
-  postFetch = ''
-   mkdir -p "$out/share/fonts/truetype"
-   mv "$downloadedFile" "$out/share/fonts/truetype/SAX2.ttf"
-  '';
-}

shared/sax2nf.nix

@@ -0,0 +1,24 @@
+{ pkgs, ... }:
+pkgs.stdenv.mkDerivation {
+  name = "SAX2";
+
+  sax2 = (pkgs.fetchurl {
+    url = "https://abrudz.github.io/SAX2/SAX2.ttf";
+    sha256 = "sha256-t7Se4Hkojznrret/gb1y1uVnecENTuKtQv11ygafMPY=";
+  });
+
+  patcher = (pkgs.fetchzip {
+    url = "https://github.com/ryanoasis/nerd-fonts/releases/download/v3.0.2/FontPatcher.zip";
+    sha256 = "sha256-ZJpF/Q5lfcW3srb2NbJk+/QEuwaFjdzboa+rl9L7GGE=";
+    stripRoot = false;
+  });
+
+  dontUnpack = true;
+
+  nativeBuildInputs = [ pkgs.fontforge (pkgs.python3.withPackages (p: [ p.fontforge ])) ];
+
+  buildPhase = ''
+    mkdir -p $out/share/fonts/truetype
+    python3 -OO $patcher/font-patcher --complete --careful --custom ${pkgs.fira-code}/share/fonts/truetype/FiraCode-VF.ttf -out $out/share/fonts/truetype $sax2
+  '';
+}