Some fairly minimal changes

.config.d/15-lsp.el

@@ -115,4 +115,28 @@
 
 (add-hook 'emacs-lisp-mode-hook (lambda () (lispy-mode 1)))
 
+;; This package adds indent bars. Currently only configured for rust and python.
+(use-package indent-bars
+  :ensure t
+  :defer t
+  :custom
+  (indent-bars-no-descend-lists t)   ; no extra bars in continued func arg lists
+  (indent-bars-treesit-support t)
+  (indent-bars-treesit-ignore-blank-lines-types '("module"))
+  ;; Add other languages as needed
+  (indent-bars-treesit-scope '((python function_definition class_definition for_statement
+	                                   if_statement with_statement while_statement)
+                               (rust trait_item impl_item 
+                                     macro_definition macro_invocation 
+                                     struct_item enum_item mod_item 
+                                     const_item let_declaration 
+                                     function_item for_expression 
+                                     if_expression loop_expression 
+                                     while_expression match_expression 
+                                     match_arm call_expression 
+                                     token_tree token_tree_pattern 
+                                     token_repetition)))
+  (indent-bars-treesit-wrap '((rust arguments parameters)))
+  :hook ((python-base-mode yaml-mode rust-mode) . indent-bars-mode))
+
 ;;; 15-lsp.el end here