feat!: add zed editor, format files

nix/modules/zed-editor.nix

@@ -0,0 +1,84 @@
+{
+  pkgs,
+  lib,
+  config,
+  ...
+}:
+{
+  options.zed = {
+    enable = lib.mkEnableOption "enable zed";
+  };
+
+  config = lib.mkIf config.zed.enable {
+    home-manager.users.luca = {
+      programs.zed-editor = {
+        enable = true;
+        extraPackages = with pkgs; [ nixd ];
+        extensions = [
+          "luau"
+          "nix"
+          "rose-pine-theme"
+        ];
+        userSettings = {
+          features = {
+            edit_prediction_provider = "none";
+          };
+          edit_predictions = null;
+          vim_mode = true;
+          ui_font_size = 16;
+          buffer_font_size = 16;
+          theme = {
+            mode = "dark";
+            dark = "Rosé Pine";
+          };
+          diagnostics = {
+            inline = {
+              enabled = true;
+            };
+          };
+          format_on_save = "on";
+          lsp = {
+            "luau-lsp" = {
+              settings = {
+                ext = {
+                  roblox = {
+                    enabled = true;
+                    security_level = "plugin";
+                  };
+                  fflags = {
+                    enable_new_solver = true;
+                    sync = true;
+                  };
+                };
+              };
+            };
+            nixd = {
+              initialization_options = {
+                formatting = {
+                  command = [
+                    "nixfmt"
+                    "--quiet"
+                    "--"
+                  ];
+                };
+              };
+            };
+          };
+          languages = {
+            Luau = {
+              formatter = {
+                external = {
+                  command = "stylua";
+                  arguments = [ "-" ];
+                };
+              };
+            };
+            Nix = {
+              language_servers = [ "nixd" ];
+            };
+          };
+        };
+      };
+    };
+  };
+}