WIP: Integration branch with darwin and deck support

- Added darwin and jovian inputs
- Added platform-specific package configurations
- Added darwinConfigurations and deck nixosConfiguration
- Copied darwin and deck specific files
- Fixed darwin version compatibility

Some configurations still need debugging

pkgs/breezy-gnome.nix

@@ -0,0 +1,54 @@
+# Imported from https://github.com/wheaney/breezy-desktop/pull/113/files
+# Use flake or nixpkgs once upstreamed
+{
+  self,
+  lib,
+  stdenv,
+  glib,
+  ...
+}: stdenv.mkDerivation {
+    pname = "breezy-gnome";
+    version = "unstable";
+
+    src = lib.cleanSource "${self}/gnome/src/.";
+
+    buildInputs = [
+      glib
+    ];
+
+    passthru = {
+      extensionUuid = "breezydesktop@xronlinux.com";
+    };
+
+    buildPhase = ''
+      mkdir -p build/schemas
+      glib-compile-schemas --targetdir="build/schemas" $src/schemas/
+      cp $src/*.js build/
+      cp $src/*.frag build/
+      mkdir -p build/schemas/
+      cp $src/schemas/*.xml build/schemas/
+      mkdir -p build/dbus-interfaces/
+      cp $src/dbus-interfaces/*.xml build/dbus-interfaces/
+      mkdir -p build/textures/
+      cp -rL $src/textures/* build/textures/
+      cp $src/metadata.json build/
+    '';
+
+    installPhase = ''
+      extra_source=()
+      for file in "$DEST_DIR"/*; do
+          extra_source+=("--extra-source=$file")
+      done
+      gnome-extensions pack --force "$${extra_source[@]}" "build" -o "$out"
+    '';
+
+    doInstallCheck = false;
+    # The default release is a script which will do an impure download
+    # just ensure that the application can run without network
+
+    meta = with lib; {
+      homepage = "https://github.com/wheaney/breezy-desktop";
+      maintainers = with maintainers; [shymega];
+      platforms = platforms.linux;
+    };
+  }