nixvim: add default tab behavior

home/common/programs/nixvim/core.nix

@@ -19,7 +19,6 @@
     globals.mapleader = " ";
 
     opts = { 
-      smartindent = false;
       relativenumber = true;
       clipboard = "unnamedplus";
     };

home/common/programs/nixvim/plugins/lsp.nix

@@ -1,6 +1,13 @@
 { ... }:
 {
   programs.nixvim = {
+    opts = {
+      tabstop = 4;
+      shiftwidth = 4;
+      softtabstop = 0;
+      expandtab = true;
+      smartindent = true;
+    };
     plugins = {
       treesitter = {
         enable = true;
@@ -11,9 +18,7 @@
             custom_captures = { };
             enable = true;
           };
-          indent = {
-            enable = true;
-          };
+          indent.enable = false;
           folding = true;
           parser_install_dir = {
             __raw = "vim.fs.joinpath(vim.fn.stdpath('data'), 'treesitter')";
@@ -70,7 +75,13 @@
           gopls.enable = true;
           nixd.enable = true;
           lua-ls.enable = true;
-          clangd.enable = true;
+          clangd = {
+            enable = true;
+            cmd = [
+              "clangd"
+                "--fallback-style=webkit"
+            ];
+          };
         };
         keymaps = {
           lspBuf = {