install my own fonts to the nix store

.gitignore

@@ -1 +1,2 @@
-*.secret
+/secret/
+*.secret

packages/cullmann-fonts.nix

@@ -0,0 +1,20 @@
+{
+  stdenvNoCC,
+  lib,
+}:
+stdenvNoCC.mkDerivation {
+  pname = "cullmann-fonts";
+  version = "1.0";
+  src = /nix/data/nixos/secret/fonts;
+
+  installPhase = ''
+    mkdir -p $out/share/fonts/truetype/
+    cp -r $src/*.{ttf,otf} $out/share/fonts/truetype/
+  '';
+
+  meta = with lib; {
+    description = "Cullmann's Fonts";
+    homepage = "https://cullmann.io/";
+    platforms = platforms.all;
+  };
+}

share/common.nix

@@ -1,6 +1,7 @@
 { config, pkgs, ... }:
 let
   impermanence = builtins.fetchTarball "https://github.com/nix-community/impermanence/archive/master.tar.gz";
+  cullmann-fonts = pkgs.callPackage "/nix/data/nixos/packages/cullmann-fonts.nix" {};
 in
 {
   #
@@ -411,9 +412,8 @@ in
 
     # system fonts
     packages = with pkgs; [
-      # Inter & Merriweather as main fonts
-      inter
-      merriweather
+      # personal paid fonts
+      cullmann-fonts
 
       # font families with good unicode coverage as fallback
       noto-fonts