Initial release.

extra/exampleConfig.nix

@@ -0,0 +1,17 @@
+{ config, ... }:
+
+{
+  imports = [ ./.. ];
+  config.speak = {
+    enable = true;
+    # runAsRoot = false;
+    config.speakup = {
+      soft = {
+        direct = "1";
+        rate = "7";
+      };
+    };
+  };
+
+  config.sound.enable = true;
+}

extra/mate.nix

@@ -0,0 +1,54 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+
+let
+  addToXDGDirs = p: ''
+    if [ -d "${p}/share/gsettings-schemas/${p.name}" ]; then
+      export XDG_DATA_DIRS=$XDG_DATA_DIRS''${XDG_DATA_DIRS:+:}${p}/share/gsettings-schemas/${p.name}
+    fi
+    if [ -d "${p}/lib/girepository-1.0" ]; then
+      export GI_TYPELIB_PATH=$GI_TYPELIB_PATH''${GI_TYPELIB_PATH:+:}${p}/lib/girepository-1.0
+      export LD_LIBRARY_PATH=$LD_LIBRARY_PATH''${LD_LIBRARY_PATH:+:}${p}/lib
+    fi
+  '';
+in {
+  environment.systemPackages = with pkgs; [
+    orca
+    glib.bin
+  ];
+  services.gnome3.at-spi2-core.enable = true;
+  services.xserver = {
+    desktopManager.mate.enable = true;
+    displayManager = {
+      gdm = {
+        enable = true;
+        autoSuspend = false;
+        autoLogin = {
+          enable = true;
+          user = "nixos";
+        };
+      };
+      sessionCommands = ''
+        if test "$XDG_CURRENT_DESKTOP" = "MATE"; then
+            export XDG_MENU_PREFIX=mate-
+            # Let caja find extensions
+            export CAJA_EXTENSION_DIRS=$CAJA_EXTENSION_DIRS''${CAJA_EXTENSION_DIRS:+:}${config.system.path}/lib/caja/extensions-2.0
+            # Let caja extensions find gsettings schemas
+            ${concatMapStrings (p: ''
+            if [ -d "${p}/lib/caja/extensions-2.0" ]; then
+                ${addToXDGDirs p}
+            fi
+            '') config.environment.systemPackages}
+            # Add mate-control-center paths to some XDG variables because its schemas are needed by mate-settings-daemon, and mate-settings-daemon is a dependency for mate-control-center (that is, they are mutually recursive)
+            ${addToXDGDirs pkgs.mate.mate-control-center}
+            # Auto start orca screen-reader
+            GSETTINGS_BACKEND=dconf ${pkgs.glib.bin}/bin/gsettings set org.gnome.desktop.a11y.applications screen-reader-enabled true
+            GSETTINGS_BACKEND=dconf ${pkgs.glib.bin}/bin/gsettings set org.mate.interface accessibility true
+            GSETTINGS_BACKEND=dconf ${pkgs.glib.bin}/bin/gsettings set org.mate.applications-at-visual startup true
+            export GTK_MODULES=gail:atk-bridge
+        fi
+      '';
+    };
+  };
+}