(feature) Add swapLeftCtrlAndFn

Use this and never find yourself again hitting fn because of muscle
memory! (you can even physically swap the keycaps, at least on M series)

Keycodes have been pulled from https://hidutil-generator.netlify.app/
and the hex value has been converted to a base 10 int.

1 files changed, 14 insertions, 0 deletions

diff --git a/modules/system/keyboard.nix b/modules/system/keyboard.nix
index 01e2525..f4f6406 100644
--- a/modules/system/keyboard.nix
+++ b/modules/system/keyboard.nix
@@ -38,6 +38,12 @@ in
       description = "Whether to swap the left Command key and left Alt key.";
     };
 
+    system.keyboard.swapLeftCtrlAndFn = mkOption {
+      type = types.bool;
+      default = false;
+      description = "Whether to swap the left Control key and Fn (Globe) key.";
+    };
+
     system.keyboard.userKeyMapping = mkOption {
       internal = true;
       type = types.listOf (types.attrsOf types.int);
@@ -66,6 +72,14 @@ in
         HIDKeyboardModifierMappingSrc = 30064771298;
         HIDKeyboardModifierMappingDst = 30064771299;
       })
+      (mkIf cfg.swapLeftCtrlAndFn {
+        HIDKeyboardModifierMappingSrc = 30064771296;
+        HIDKeyboardModifierMappingDst = 1095216660483;
+      })
+      (mkIf cfg.swapLeftCtrlAndFn {
+        HIDKeyboardModifierMappingSrc = 1095216660483;
+        HIDKeyboardModifierMappingDst = 30064771296;
+      })
     ];
 
     system.activationScripts.keyboard.text = optionalString cfg.enableKeyMapping ''