@@ -0,0 +1,13 @@+{ config, pkgs, ... }:
+
+{ services.xserver.config = ''
+    Section "InputClass"
+        Identifier "Trackball (No Acceleration)"
+        MatchIsPointer "yes"
+        MatchIsTouchpad "no"
+        MatchProduct "Trackball"
+        Option "AccelerationProfile" "-1"
+        Option "AccelerationScheme" "none"
+    EndSection
+  '';
+}

@@ -0,0 +1,86 @@+{ config, pkgs, ... }:
+
+{ services.xserver = {
+    enable = true;
+    enableCtrlAltBackspace = true;
+    exportConfiguration = true;
+  };
+
+  environment.sessionVariables = {
+    XCURSOR_PATH = [
+      "${config.system.path}/share/icons"
+      "$HOME/.icons"
+      "$HOME/.nix-profile/share/icons/"
+    ];
+  };
+
+  environment.systemPackages = with pkgs; [
+    xorg.xmodmap
+    xorg.xinit
+    xorg.xev
+    xorg.xdpyinfo
+    xclip
+
+    vanilla-dmz
+
+    hicolor_icon_theme
+    adapta-gtk-theme
+    flat-plat
+    paper-gtk-theme
+    paper-icon-theme
+    numix-gtk-theme
+    numix-icon-theme
+
+    gtk-engine-murrine
+    gtk_engines
+  ];
+
+  fonts = {
+    enableFontDir = true;
+    enableDefaultFonts = true;
+    fontconfig = {
+      defaultFonts = {
+        monospace = [ "Roboto Mono" ];
+        sansSerif = [ "Noto Sans" ];
+        serif = [ "Noto Serif" ];
+      };
+      ultimate = {
+        enable = true;
+        # presets:
+        # ultimate1 ultimate2 ultimate3 ultimate4 ultimate5 osx windowsxp
+        preset = "ultimate3";
+      };
+    };
+    fonts = with pkgs; [
+      anonymousPro
+      cantarell_fonts
+      carlito
+      cm_unicode
+      dejavu_fonts
+      fantasque-sans-mono
+      fira
+      fira-code
+      fira-mono
+      font-droid
+      font-awesome-ttf
+      hack-font
+      nerdfonts
+      iosevka
+      liberation_ttf
+      noto-fonts
+      mononoki
+      opensans-ttf
+      paratype-pt-mono
+      paratype-pt-sans
+      paratype-pt-serif
+      roboto
+      roboto-mono
+      source-code-pro
+      source-sans-pro
+      source-serif-pro
+      terminus_font
+      ubuntu_font_family
+      xorg.fontxfree86type1
+    ];
+  };
+}

@@ -15,6 +15,8 @@ ./modules/shell.nix     ./modules/dotfiles.nix
     ./modules/berlin.nix
     ./modules/colemak.nix
+    ./modules/trackball.nix
+    ./modules/xserver.nix
   ];
 
   networking.hostName = "satoshipad";