Set split-width-threshold to something reasonable

Added a custom function `inf-ruby-process-carriage-return` to clean up unwanted carriage returns from inf-ruby output. This function is now hooked into `comint-preoutput-filter-functions` to process output in `inf-ruby-mode`. This change ensures better handling of newline characters in the output stream.

emacs/.emacs.d/config/init-built-ins.el

@@ -70,4 +70,12 @@
   :general
   ([remap dabbrev-expand] #'hippie-expand))
 
+(use-package grep
+  :straight (:type built-in)
+  :if (executable-find "rg")
+  :config
+  (setq grep-program "rg")
+  :custom
+  (grep-command "rg --color=always --with-filename --line-number --null -e "))
+
 (provide 'init-built-ins)

emacs/.emacs.d/config/init-ruby.el

@@ -18,7 +18,16 @@
   :commands (inf-ruby inf-ruby-console-auto)
   :general
   ([remap inf-ruby] #'inf-ruby-console-auto)
-  :hook (after-init . inf-ruby-switch-setup))
+  :hook (after-init . inf-ruby-switch-setup)
+  :config
+  (defun inf-ruby-process-carriage-return (output)
+    (let ((processed (replace-regexp-in-string ".*\r" "" output)))
+      (if (string-match-p "\\`\n" processed)
+          (replace-regexp-in-string "\\`\n" "" processed)
+        processed)))
+  (defun inf-ruby-carriage-return-hook ()
+    (add-hook 'comint-preoutput-filter-functions #'inf-ruby-process-carriage-return nil t))
+  (add-hook 'inf-ruby-mode-hook #'inf-ruby-carriage-return-hook))
 
 (use-package rbenv
   :hook (after-init . global-rbenv-mode)
@@ -60,9 +69,13 @@
     "Runs RSpec on all related specs for the Ruby files changed between the current branch and TARGET-BRANCH."
     (interactive)
     (rspec--run-verify-changed t))
+  (defun rspec-dired-verify-marked ()
+    (interactive)
+    (rspec-run-multiple-files (dired-get-marked-files) (rspec-core-options)))
   :general
   (rspec-mode-map "C-c , g" #'rspec-verify-changed
                   "C-c , G" #'rspec-verify-changed-related)
+  (rspec-dired-mode-map "C-c , m" #'rspec-dired-verify-marked)
   (rspec-verifiable-mode-map "C-c , g" #'rspec-verify-changed
                              "C-c , G" #'rspec-verify-changed-related)
   :custom

emacs/.emacs.d/config/init-windows.el

@@ -42,6 +42,7 @@
 ;; Buffer and window layout management
 (setopt switch-to-buffer-in-dedicated-window 'pop
         split-height-threshold 116
+        split-width-threshold 216
         window-sides-slots '(1 0 0 1)
         display-buffer-alist '(("\\*Help\\*"
                                 (display-buffer-reuse-window