diff --git a/home-manager/default.nix b/home-manager/default.nix
index bb118f9..a0aa1bc 100644
--- a/home-manager/default.nix
+++ b/home-manager/default.nix
@@ -92,10 +92,8 @@ in
       ncmpcpp
       acpi
       unstable.joplin-desktop
-      bat
 
-      prusa-slicer
-      orca-slicer
+      unstable.prusa-slicer
       htop
       xdg-utils
       moreutils
diff --git a/home-manager/modules/waybar.css b/home-manager/modules/waybar.css
index 5e0cb89..149790c 100644
--- a/home-manager/modules/waybar.css
+++ b/home-manager/modules/waybar.css
@@ -97,10 +97,6 @@
 	margin-left: 3px;
 }
 
-#tray menu {
-	background: @dark;
-}
-
 /* All module that should blink */
 #mode
 #memory,
diff --git a/home-manager/modules/zsh.nix b/home-manager/modules/zsh.nix
index ce1ce75..7c8562a 100644
--- a/home-manager/modules/zsh.nix
+++ b/home-manager/modules/zsh.nix
@@ -18,7 +18,6 @@
       "buzzer" = "ssh -i Nextcloud/Privat/id_door door@door.cccda.de buzzer";
       "beep" = "paplay /usr/share/sounds/freedesktop/stereo/complete.oga"; # play "ding" for long running jobs
       "dig" = "dig +short";
-      "cat" = "bat --theme=TwoDark --style=plain";
     };
     initExtra = ''
       autoload -U colors && colors
diff --git a/modules/lix.nix b/modules/lix.nix
index ca9e44d..1c0bf80 100644
--- a/modules/lix.nix
+++ b/modules/lix.nix
@@ -1,16 +1,16 @@
 let
   module = fetchTarball {
     name = "source";
-    url = "https://git.lix.systems/lix-project/nixos-module/archive/2.91.1-1.tar.gz";
-    sha256 = "sha256-6U0CyPycIBc04hbYy2hBINnVso58n/ZyywY2BD3hu+s=";
+    url = "https://git.lix.systems/lix-project/nixos-module/archive/2.90.0-rc1.tar.gz";
+    sha256 = "sha256-64lB/NO6AQ6z6EDCemPSYZWX/Qc6Rt04cPia5T5v01g=";
   };
   lixSrc = fetchTarball {
     name = "source";
-    url = "https://git.lix.systems/lix-project/lix/archive/2.91.1.tar.gz";
-    sha256 = "sha256-hiGtfzxFkDc9TSYsb96Whg0vnqBVV7CUxyscZNhed0U=";
+    url = "https://git.lix.systems/lix-project/lix/archive/2.90.0-rc1.tar.gz";
+    sha256 = "sha256-WY7BGnu5PnbK4O8cKKv9kvxwzZIGbIQUQLGPHFXitI0=";
   };
+  # This is the core of the code you need; it is an exercise to the
+  # reader to write the sources in a nicer way, or by using npins or
+  # similar pinning tools.
 in
-# This is the core of the code you need; it is an exercise to the
-# reader to write the sources in a nicer way, or by using npins or
-# similar pinning tools.
 import "${module}/module.nix" { lix = lixSrc; }
diff --git a/nix/sources.json b/nix/sources.json
index 5954a0c..69278ab 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -5,10 +5,10 @@
         "homepage": "https://nix-community.github.io/home-manager/",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "2f23fa308a7c067e52dfcc30a0758f47043ec176",
-        "sha256": "00wp0s9b5nm5rsbwpc1wzfrkyxxmqjwsc1kcibjdbfkh69arcpsn",
+        "rev": "845a5c4c073f74105022533907703441e0464bc3",
+        "sha256": "0l3pcd38p4iq46ipc5h3cw7wmr9h8rbn34h8a5a4v8hcl21s8r5x",
         "type": "tarball",
-        "url": "https://github.com/nix-community/home-manager/archive/2f23fa308a7c067e52dfcc30a0758f47043ec176.tar.gz",
+        "url": "https://github.com/nix-community/home-manager/archive/845a5c4c073f74105022533907703441e0464bc3.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
     "niv": {
@@ -17,10 +17,10 @@
         "homepage": "https://github.com/nmattia/niv",
         "owner": "nmattia",
         "repo": "niv",
-        "rev": "55422d6f2618cd2195eeafa3f16ae63fde723c15",
-        "sha256": "1s6m41hhsydf3lw6ihksc904vcpyd5agwiqq8hb8plyqvsyn74ba",
+        "rev": "f7c538837892dd2eb83567c9f380a11efb59b53f",
+        "sha256": "0xl33k24vfc29cg9lnp95kvcq69qbq5fzb7jk9ig4lgrhaarh651",
         "type": "tarball",
-        "url": "https://github.com/nmattia/niv/archive/55422d6f2618cd2195eeafa3f16ae63fde723c15.tar.gz",
+        "url": "https://github.com/nmattia/niv/archive/f7c538837892dd2eb83567c9f380a11efb59b53f.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     }
 }
diff --git a/overlay b/overlay
index 1fb677b..c598bf7 160000
--- a/overlay
+++ b/overlay
@@ -1 +1 @@
-Subproject commit 1fb677b6b94023b47e03a2a4c2c67427600f8d78
+Subproject commit c598bf71e3f6dbdad34092b09df9551dec913770