emacs: add nlinum and git-gutter

home/emacs/default.nix

@@ -77,6 +77,8 @@
         which-key
         link-hint
         darkroom
+        nlinum
+        git-gutter
 
         # writing-packages
         markdown-mode

home/emacs/init.el

@@ -284,6 +284,19 @@
   :ensure t
   :config (zone-when-idle (* 60 60 2))) ; 2 hours
 
+;; git-gutter needs obsolete `global-linum-mode', `nlinum' provides
+;; this until updated
+(use-package nlinum
+  :ensure t)
+
+(use-package git-gutter
+  :ensure t
+  :after nlinum
+  :config (global-git-gutter-mode +1)
+  :custom
+  (git-gutter:visual-line t)
+  (git-gutter:update-interval 0.5))
+
 (setq org-directory "~/Org"
       org-default-notes-file (expand-file-name "notes.org" org-directory)
       org-pretty-entities-include-sub-superscripts t

home/emacs/init.org

@@ -342,6 +342,22 @@
     :ensure t
     :config (zone-when-idle (* 60 60 2))) ; 2 hours
 #+end_src
+
+** Git-gutter
+#+begin_src emacs-lisp
+  ;; git-gutter needs obsolete `global-linum-mode', `nlinum' provides
+  ;; this until updated
+  (use-package nlinum
+    :ensure t)
+
+  (use-package git-gutter
+    :ensure t
+    :after nlinum
+    :config (global-git-gutter-mode +1)
+    :custom
+    (git-gutter:visual-line t)
+    (git-gutter:update-interval 0.5))
+#+end_src
 * Org-mode
 For reference information, see [[https://orgmode.com][Org-mode website]]