diff --git a/hosts/tohru/background-image.jpg b/hosts/tohru/background-image.jpg
new file mode 100755
index 0000000..bc9a614
Binary files /dev/null and b/hosts/tohru/background-image.jpg differ
diff --git a/hosts/tohru/configuration.nix b/hosts/tohru/configuration.nix
index 84f046c..4878136 100644
--- a/hosts/tohru/configuration.nix
+++ b/hosts/tohru/configuration.nix
@@ -31,11 +31,6 @@
   sound.enable = true;
   hardware.pulseaudio.enable = true;
 
-  # Enable touchpad support (enabled default in most desktopManager).
-  services.xserver.libinput.enable = true;
-
-  # List packages installed in system profile. To search, run:
-  # $ nix search wget
   environment.systemPackages = with pkgs; [
     colmena
     git
@@ -43,31 +38,12 @@
     wget
   ];
 
-  # Some programs need SUID wrappers, can be configured further or are
-  # started in user sessions.
-  # programs.mtr.enable = true;
-  # programs.gnupg.agent = {
-  #   enable = true;
-  #   enableSSHSupport = true;
-  # };
-
   programs.steam = {
     enable = true;
     remotePlay.openFirewall = true;
     dedicatedServer.openFirewall = true;
   };
 
-  # List services that you want to enable:
-
-  # Enable the OpenSSH daemon.
-  # services.openssh.enable = true;
-
-  # Open ports in the firewall.
-  # networking.firewall.allowedTCPPorts = [ ... ];
-  # networking.firewall.allowedUDPPorts = [ ... ];
-  # Or disable the firewall altogether.
-  # networking.firewall.enable = false;
-
   nixpkgs.config.allowUnfree = true;
   hardware.enableAllFirmware = true;
   services.fwupd.enable = true;
diff --git a/hosts/tohru/home.nix b/hosts/tohru/home.nix
index a9949c9..2ea0105 100644
--- a/hosts/tohru/home.nix
+++ b/hosts/tohru/home.nix
@@ -4,7 +4,11 @@
   users.users.bluebird = {
     isNormalUser = true;
     description = "Bluebird";
-    extraGroups = [ "wheel" "networkmanager" ];
+    extraGroups = [
+      "wheel" # sudo
+      "networkmanager" # UI wifi configuration
+      "dialout" # access to serial ports
+    ];
     packages = with pkgs; [
       # TODO: move these to home-manager
       bitwarden
@@ -13,53 +17,83 @@
     ];
   };
 
-  home-manager.users.bluebird = { pkgs, ... }: {
-    home.packages = with pkgs; [
-      fortune
-      htop
-      tree
+  home-manager.users.bluebird = { pkgs, ... }:
+    let
+      homeDirectory = "/home/bluebird";
+    in
+    {
+      home.homeDirectory = homeDirectory;
 
-      nil
-      nixpkgs-fmt
-    ];
+      home.packages = with pkgs; [
+        fortune
+        htop
+        tree
 
-    programs.git = {
-      enable = true;
-      userName = "Katherina Walshe-Grey";
-      userEmail = "git@katherina.rocks";
-    };
+        nil
+        nixpkgs-fmt
+      ];
 
-    programs.vscode =
-      let
-        system = builtins.currentSystem;
-        sources = import ../../npins;
-        extensions = (import sources.nix-vscode-extensions).extensions.${system};
-      in
-      {
+      dconf = {
         enable = true;
-        enableExtensionUpdateCheck = false;
-        enableUpdateCheck = false;
-        package = pkgs.vscodium;
-        extensions = (with pkgs.vscode-extensions; [
-          jnoortheen.nix-ide
-          ms-python.python
-        ]) ++ (with extensions.open-vsx; [
-          robbowen.synthwave-vscode
-        ]);
-        mutableExtensionsDir = false;
-        userSettings = {
-          "extensions.autoUpdate" = false;
-          "git.autofetch" = true;
-          "nix.enableLanguageServer" = true;
-          "nix.serverPath" = "nil";
-          "nix.serverSettings".nil = {
-            diagnostics.ignored = [ "unused_binding" "unused_with" ];
-            formatting.command = [ "nixpkgs-fmt" ];
+        settings =
+          let
+            backgroundOptions = {
+              color-shading-type = "solid";
+              picture-options = "zoom";
+              picture-uri = "${homeDirectory}/.background-image";
+              primary-color = "#3a4ba0";
+              secondary-color = "#2f302f";
+            };
+          in
+          {
+            "org/gnome/desktop/background" = backgroundOptions // {
+              picture-uri-dark = backgroundOptions.picture-uri;
+            };
+            "org/gnome/desktop/screensaver" = backgroundOptions;
+            "org/gnome/desktop/interface".color-scheme = "prefer-dark";
           };
-          "workbench.colorTheme" = "SynthWave '84";
-        };
+      };
+      home.file.".background-image".source = ./background-image.jpg;
+
+      programs.chromium.enable = true;
+
+      programs.git = {
+        enable = true;
+        userName = "Katherina Walshe-Grey";
+        userEmail = "git@katherina.rocks";
       };
 
-    home.stateVersion = "23.11";
-  };
+      programs.vscode =
+        let
+          system = builtins.currentSystem;
+          sources = import ../../npins;
+          extensions = (import sources.nix-vscode-extensions).extensions.${system};
+        in
+        {
+          enable = true;
+          enableExtensionUpdateCheck = false;
+          enableUpdateCheck = false;
+          package = pkgs.vscodium;
+          extensions = (with pkgs.vscode-extensions; [
+            jnoortheen.nix-ide
+            ms-python.python
+          ]) ++ (with extensions.open-vsx; [
+            robbowen.synthwave-vscode
+          ]);
+          mutableExtensionsDir = false;
+          userSettings = {
+            "extensions.autoUpdate" = false;
+            "git.autofetch" = true;
+            "nix.enableLanguageServer" = true;
+            "nix.serverPath" = "nil";
+            "nix.serverSettings".nil = {
+              diagnostics.ignored = [ "unused_binding" "unused_with" ];
+              formatting.command = [ "nixpkgs-fmt" ];
+            };
+            "workbench.colorTheme" = "SynthWave '84";
+          };
+        };
+
+      home.stateVersion = "23.11";
+    };
 }
diff --git a/hosts/yevaud/configuration.nix b/hosts/yevaud/configuration.nix
index 34e6a1e..4e3176d 100644
--- a/hosts/yevaud/configuration.nix
+++ b/hosts/yevaud/configuration.nix
@@ -6,31 +6,14 @@
       ./hardware-configuration.nix
     ];
 
-  # Use the systemd-boot EFI boot loader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
 
   networking.hostName = "yevaud";
   networking.hostId = "09673d65";
-  # Pick only one of the below networking options.
-  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
-  # networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
 
   time.timeZone = "Etc/UTC";
 
-  # Configure network proxy if necessary
-  # networking.proxy.default = "http://user:password@proxy:port/";
-  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
-
-  # Select internationalisation properties.
-  # i18n.defaultLocale = "en_US.UTF-8";
-  # console = {
-  #   font = "Lat2-Terminus16";
-  #   keyMap = "us";
-  #   useXkbConfig = true; # use xkb.options in tty.
-  # };
-
-  # Define a user account. Don't forget to set a password with ‘passwd’.
   users.users.bluebird = {
     isNormalUser = true;
     extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
@@ -39,24 +22,6 @@
     ];
   };
 
-  # List packages installed in system profile. To search, run:
-  # $ nix search wget
-  # environment.systemPackages = with pkgs; [
-  #   vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
-  #   wget
-  # ];
-
-  # Some programs need SUID wrappers, can be configured further or are
-  # started in user sessions.
-  # programs.mtr.enable = true;
-  # programs.gnupg.agent = {
-  #   enable = true;
-  #   enableSSHSupport = true;
-  # };
-
-  # List services that you want to enable:
-
-  # Enable the OpenSSH daemon.
   services.openssh = {
     enable = true;
     settings = {
@@ -65,11 +30,8 @@
     };
   };
 
-  # Open ports in the firewall.
   networking.firewall.allowedTCPPorts = [ 22 80 443 ];
   # networking.firewall.allowedUDPPorts = [ ... ];
-  # Or disable the firewall altogether.
-  # networking.firewall.enable = false;
 
   services.fail2ban.enable = true;
 
diff --git a/npins/sources.json b/npins/sources.json
index 554530a..f0bb28a 100644
--- a/npins/sources.json
+++ b/npins/sources.json
@@ -7,10 +7,10 @@
         "owner": "nix-community",
         "repo": "home-manager"
       },
-      "branch": "release-23.11",
-      "revision": "2c78a57c544dd19b07442350727ced097e1aa6e6",
-      "url": "https://github.com/nix-community/home-manager/archive/2c78a57c544dd19b07442350727ced097e1aa6e6.tar.gz",
-      "hash": "1zb4qsyn7l1zdiv1kjx07jvgnakpsifc62fxcim50w3ni27cwxk3"
+      "branch": "release-24.05",
+      "revision": "a631666f5ec18271e86a5cde998cba68c33d9ac6",
+      "url": "https://github.com/nix-community/home-manager/archive/a631666f5ec18271e86a5cde998cba68c33d9ac6.tar.gz",
+      "hash": "13b22rkylwg4jwqmhyypkyjzm4algk5y43kfwwnb96wxmrqrplxc"
     },
     "nix-vscode-extensions": {
       "type": "Git",
@@ -20,15 +20,15 @@
         "repo": "nix-vscode-extensions"
       },
       "branch": "master",
-      "revision": "1f5f225e7ceee57404f6e409200cc9eea25090be",
-      "url": "https://github.com/nix-community/nix-vscode-extensions/archive/1f5f225e7ceee57404f6e409200cc9eea25090be.tar.gz",
-      "hash": "1s24w7fwfgd1v3s9zlj9cmwhbfc90av8c44kg9dchvj0yh6fg5sx"
+      "revision": "1ae16af500525f1ca1b3295f5ee4e2b1b26f3004",
+      "url": "https://github.com/nix-community/nix-vscode-extensions/archive/1ae16af500525f1ca1b3295f5ee4e2b1b26f3004.tar.gz",
+      "hash": "0rf225qaim5kgw7qkm7iq2jzjqlanipx8sjc4k6w84lqi2rc2aga"
     },
     "nixpkgs": {
       "type": "Channel",
-      "name": "nixos-23.11",
-      "url": "https://releases.nixos.org/nixos/23.11/nixos-23.11.7313.9d29cd266ceb/nixexprs.tar.xz",
-      "hash": "0phfgypnshhlh6ri54yp2f9qabq0hlq06jn46zv692jy6axss4kx"
+      "name": "nixos-24.05",
+      "url": "https://releases.nixos.org/nixos/24.05/nixos-24.05.675.805a384895c6/nixexprs.tar.xz",
+      "hash": "1lgx2ln363mhdv1hnmnpiryhg3fpkpgzq50k1gnscp24sm5rskv2"
     }
   },
   "version": 3