Set font height in a host-specific way

config.org

@@ -54,6 +54,19 @@
      (setq use-package-always-ensure t)
    #+end_src
 
+** Hostname
+   It's useful to have the short hostname available in case we want to
+   configure something differently on certain machines. The full
+   hostname can be retrieved with [[help:system-name][system-name]], but this has the local
+   domain on the end; we want to cut that off.
+
+   #+begin_src emacs-lisp
+     (defun cut-at (delimeter string)
+       (substring string 0 (string-search delimeter string)))
+
+     (defvar hostname (cut-at "." (system-name)))
+   #+end_src
+
 * Emacs Server
   Start an Emacs server if one is not running already:
 
@@ -98,13 +111,19 @@
   #+end_src
 
 ** Font
-   I find serif fonts much nicer to read, so change the default face
-   to a serif font:
+   I find serif fonts much nicer to read, so definitely change the
+   default face to a serif font. Font size seems inconsistent across
+   different systems for some reason, so need to determine the font
+   height based off the hostname.
 
    #+begin_src emacs-lisp
-     (set-face-attribute 'default nil
-                         :family "Courier 10 Pitch"
-                         :height 100)
+     (let ((font-height
+            (pcase hostname
+              ("mandarax" 115)
+              (_ 110))))
+       (set-face-attribute 'default nil
+                           :family "Courier 10 Pitch"
+                           :height font-height))
    #+end_src
 
    I also like a little more line spacing than default, again makes