Add ligature package

init.el

@@ -67,6 +67,21 @@
   :if (package-installed-p 'nerd-icons-corfu)
   :after nerd-icons)
 
+(use-package ligature
+  :if (package-installed-p 'ligature)
+  :functions (ligature-set-ligatures
+              global-ligature-mode)
+  :config
+  (ligature-set-ligatures
+   '(prog-mode)
+   '(("<" (rx (= 1 "=")))
+     (">" (rx (= 1 "=")))
+     ("_" (rx (* "_")))
+     ("-" (rx (* "-") (= 1 ">")))
+     ("=" (rx (* "=") (? ">")))
+     ("!" (rx (+ "=")))))
+  (global-ligature-mode +1))
+
 (use-package doom-modeline
   :if (package-installed-p 'doom-modeline)
   :functions (doom-modeline-mode)