trying different nix formatter

lua/custom/plugins/formatting.lua

@@ -18,7 +18,7 @@ return {
         -- Ensure 'ruff' is installed via Home Manager (pkgs.ruff)
         python = { 'ruff_format', 'ruff_fix' },
         -- python = { 'isort', 'black' },
-        nix = { 'nixpkgs_fmt' }, -- Add nix formatter
+        nix = { 'alejandra' }, -- Add nix formatter
         -- Add other filetypes and formatters, e.g.:
         -- javascript = { "prettier" },
         -- typescript = { "prettier" },

lua/custom/plugins/lsp.lua

@@ -17,6 +17,7 @@ return {
             'lua_ls',
             'clangd',
             'pyright',
+            'nixd',
             -- Add others like 'bashls', 'yamlls', 'nixd', 'gopls', 'rust_analyzer' etc. if needed
           },
         },