diff --git a/flake.lock b/flake.lock
index 594d127..b0150ae 100644
--- a/flake.lock
+++ b/flake.lock
@@ -3,14 +3,15 @@
     "emacs-overlay": {
       "inputs": {
         "flake-utils": "flake-utils",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "nixpkgs-stable": "nixpkgs-stable"
       },
       "locked": {
-        "lastModified": 1684314617,
-        "narHash": "sha256-V7LnO8F7LnlhpRiKqcQZ9kJcS416OWEMh957nByqG9o=",
+        "lastModified": 1688922352,
+        "narHash": "sha256-aNapXmAnFz2elWWSa80XQlYgroHSKrdvV+Vzv7NUKEM=",
         "owner": "nix-community",
         "repo": "emacs-overlay",
-        "rev": "551394696c8db0fa65cc3e49fa6a81bc733b7a8a",
+        "rev": "491cafb35537047a53b63190345a7a22356af841",
         "type": "github"
       },
       "original": {
@@ -20,12 +21,15 @@
       }
     },
     "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
       "locked": {
-        "lastModified": 1667395993,
-        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "lastModified": 1687709756,
+        "narHash": "sha256-Y5wKlQSkgEK2weWdOu4J3riRd+kV/VCgHsqLNTTWQ/0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "rev": "dbabf0ca0c0c4bce6ea5eaf65af5cb694d2082c7",
         "type": "github"
       },
       "original": {
@@ -36,14 +40,14 @@
     },
     "flake-utils_2": {
       "inputs": {
-        "systems": "systems"
+        "systems": "systems_2"
       },
       "locked": {
-        "lastModified": 1681202837,
-        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "lastModified": 1687709756,
+        "narHash": "sha256-Y5wKlQSkgEK2weWdOu4J3riRd+kV/VCgHsqLNTTWQ/0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
+        "rev": "dbabf0ca0c0c4bce6ea5eaf65af5cb694d2082c7",
         "type": "github"
       },
       "original": {
@@ -54,11 +58,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1673540789,
-        "narHash": "sha256-xqnxBOK3qctIeUVxecydrEDbEXjsvHCPGPbvsl63M/U=",
+        "lastModified": 1688679045,
+        "narHash": "sha256-t3xGEfYIwhaLTPU8FLtN/pLPytNeDwbLI6a7XFFBlGo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "0f213d0fee84280d8c3a97f7469b988d6fe5fcdf",
+        "rev": "3c7487575d9445185249a159046cc02ff364bff8",
         "type": "github"
       },
       "original": {
@@ -68,13 +72,29 @@
         "type": "github"
       }
     },
-    "nixpkgs_2": {
+    "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1684215771,
-        "narHash": "sha256-fsum28z+g18yreNa1Y7MPo9dtps5h1VkHfZbYQ+YPbk=",
+        "lastModified": 1688868408,
+        "narHash": "sha256-RR9N5XTAxSBhK8MCvLq9uxfdkd7etC//seVXldy0k48=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "963006aab35e3e8ebbf6052b6bf4ea712fdd3c28",
+        "rev": "510d721ce097150ae3b80f84b04b13b039186571",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.05",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1688679045,
+        "narHash": "sha256-t3xGEfYIwhaLTPU8FLtN/pLPytNeDwbLI6a7XFFBlGo=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "3c7487575d9445185249a159046cc02ff364bff8",
         "type": "github"
       },
       "original": {
@@ -105,6 +125,21 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",
diff --git a/nixos/dustbowl.nix b/nixos/dustbowl.nix
index 22c9fe9..a186b46 100644
--- a/nixos/dustbowl.nix
+++ b/nixos/dustbowl.nix
@@ -181,6 +181,7 @@
     timewarrior
     syncthing
     nextcloud-client
+    mpd
 
     # GTK theme
     gnome.adwaita-icon-theme
@@ -198,7 +199,7 @@
     wl-mirror
 
     # GUI software
-    emacsPgtk
+    emacs-pgtk
     firefox
     thunderbird
     mpv
@@ -218,6 +219,7 @@
     zotero
     wpa_supplicant_gui
     keepassxc
+    mpdevil
 
     (callPackage ./posy-cursor-black.nix { })
   ];