quickshell: use vulkan; fix wall hash

Author: fufexan

home/services/quickshell/default.nix

@@ -38,7 +38,7 @@ in
       After = "graphical-session.target";
     };
     Service = {
-      Environment = "PATH=/run/wrappers/bin:${lib.makeBinPath dependencies} QML2_IMPORT_PATH=${QML2_IMPORT_PATH}";
+      Environment = "PATH=/run/wrappers/bin:${lib.makeBinPath dependencies} QML2_IMPORT_PATH=${QML2_IMPORT_PATH} QSG_RHI_BACKEND=vulkan";
       ExecStart = lib.getExe quickshell;
       Restart = "on-failure";
     };

home/specialisations.nix

@@ -3,7 +3,7 @@
     wallpaper =
       let
         url = "https://images.unsplash.com/photo-1529528744093-6f8abeee511d?ixlib=rb-4.0.3&q=85&fm=jpg&crop=fit&cs=srgb&w=2560";
-        sha256 = "18r5hmzglifysjmwn5j89gbbk56lbfb3f2jzwp432lr8gb5n7q8v";
+        sha256 = "sha256-G+Fjy3ooUzHI5V8KN5Zb1JS51ktIFsur1N5F+n6FJaM=";
         ext = "jpg";
       in
       builtins.fetchurl {