add universal key remapping

hardware/keyboard/keyboard.md

@@ -1,8 +1,8 @@
 ---
 title: "keyboard"
-tags: [ "Documentation", "basics" ]
+tags: [ "Documentation", "keyboard" ]
 ---
-# Set Layout
+# Set Layout with X Display
 
 Set layout to British English.
 
@@ -29,3 +29,18 @@ Remap, e.g., the right Windows key, to Alt_Gr.
     key <RWIN> {[  ISO_Level3_Shift    ]};
 ```
 
+# Set Global Keymap
+
+Copy your keymap, e.g. if it's polish-1, then:
+
+> cp /usr/share/kbd/keymaps/i386/qwerty/pl1.map.gz /usr/share/kbd/keymaps/*custom*.map.gz
+
+Then change that map:
+
+> sudo -e /usr/share/kbd/keymaps/custom.map.gz
+
+Change the default keyboard mapping to the custom map:
+
+> echo 'KEYMAP="/usr/share/kbd/keymaps/custom/*custom*.map.gz"'  | sudo tee /etc/vconsole.conf
+
+Reboot to have changes take effect.