figured it out, the nixvim input seems not to work, problem for later

modules/desktop/editors/nvim.nix

@@ -12,37 +12,37 @@ in
     programs.nixvim = {
       enable = true;
 
-#       options = {
+      options = {
-#         number = true;
+        number = true;
-#
-#         shiftwidth = 2;
-#       };
 
-#       colorschemes.gruvbox.enable = true;
+        shiftwidth = 2;
+      };
 
-#       plugins = {
+      colorschemes.gruvbox.enable = true;
-#         lualine.enable = true;
+
-#         lightline.enable = true;
+      plugins = {
-#
+        lualine.enable = true;
-#         lsp = {
+        lightline.enable = true;
-#           enable = true;
+
-#           servers = {
+        lsp = {
-#             tsserver.enable = true;
+          enable = true;
-#             lua-ls.enable = true;
+          servers = {
-#             rust-analyzer.enable = true;
+            tsserver.enable = true;
-#           };
+            lua-ls.enable = true;
-#         };
+            rust-analyzer.enable = true;
-#
+          };
-#         nvim-cmp = {
+        };
-#           enable = true;
+
-#           autoEnableSources = true;
+        nvim-cmp = {
-#           sources = [
+          enable = true;
-#             {name = "nvim_lsp";}
+          autoEnableSources = true;
-#             {name = "path";}
+          sources = [
-#             {name = "buffer";}
+            {name = "nvim_lsp";}
-#           ];
+            {name = "path";}
-#         };
+            {name = "buffer";}
-#       };
+          ];
+        };
+      };
     };
   };
 }