fix bugs with wallpaper and btrfs subvolume

machines/laptop/hardware-configuration.nix

@@ -23,6 +23,7 @@
     #options = ["defaults" "size=60%" "mode=755"];
     device = "/dev/disk/by-uuid/16c93673-4f0e-4010-a7f4-7ccffb20edb7";
     fsType = "btrfs";
+    options = ["subvol=root"];
   };
 
   boot.initrd.postResumeCommands = lib.mkAfter ''

users/andromeda/home.nix

@@ -111,7 +111,7 @@ in {
       pkgs.tree
       pkgs.zoxide
     ];
-    file.${background-path}.source = pkgs.nixos-artwork.wallpapers.gear;
+    file.${background-path}.source = config.stylix.image;
   };
   programs = {
     alacritty.enable = true;

users/andromeda/stylix.nix

@@ -10,6 +10,7 @@
     # silk-light is light theme
     base16Scheme = "${pkgs.base16-schemes}/share/themes/gruvbox-material-dark-hard.yaml";
     polarity = "dark";
+    image = "${pkgs.nixos-artwork.wallpapers.gear}/share/backgrounds/nixos/nix-wallpaper-gear.png";
     fonts = {
       monospace = {
         package = pkgs.miracode;