feat(keyd): setup keyd and some keybindings.

modules/linux/nixos/default.nix

@@ -27,6 +27,7 @@
     ./oom.nix
     ./boot.nix
     ./kanata.nix
+    ./keyd.nix
   ];
 
   crony.bluetooth.enable = lib.mkDefault true;
@@ -56,4 +57,5 @@
   crony.oom.enable = lib.mkDefault true;
   crony.boot.enable = lib.mkDefault false;
   crony.kanata.enable = lib.mkDefault false;
+  crony.keyd.enable = lib.mkDefault true;
 }

modules/linux/nixos/keyd.nix

@@ -0,0 +1,24 @@
+{
+  config,
+  lib,
+  ...
+}: {
+  options = {
+    crony.keyd.enable = lib.mkEnableOption "Enable and setup keyd layers";
+  };
+
+  config = lib.mkIf config.crony.keyd.enable {
+    services.keyd = {
+      enable = true;
+      keyboards.default = {
+        ids = ["*"];
+        settings = {
+          main = {
+            capslock = "overload(control, esc)";
+            esc = "capslock";
+          };
+        };
+      };
+    };
+  };
+}