diff --git a/config/boards/shields/charybdis/charybdis_left.overlay b/config/boards/shields/charybdis/charybdis_left.overlay
index 3f28d2d8..80e99b70 100644
--- a/config/boards/shields/charybdis/charybdis_left.overlay
+++ b/config/boards/shields/charybdis/charybdis_left.overlay
@@ -6,13 +6,6 @@
 
 #include "charybdis.dtsi"
 
-&default_transform {
-	col-offset = <6>;
-};
-
-&five_column_transform {
-	col-offset = <5>;
-};
 
 &kscan0 {
 	col-gpios
@@ -24,47 +17,3 @@
 		, <&pro_micro 8 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>
 		;
 };
-&pinctrl {
-    spi0_default: spi0_default {
-        group1 {
-            psels = <NRF_PSEL(SPIM_SCK, 0, 8)>,
-                <NRF_PSEL(SPIM_MOSI, 0, 17)>,
-                <NRF_PSEL(SPIM_MISO, 0, 17)>;
-        };
-    };
-
-    spi0_sleep: spi0_sleep {
-        group1 {
-            psels = <NRF_PSEL(SPIM_SCK, 0, 8)>,
-                <NRF_PSEL(SPIM_MOSI, 0, 17)>,
-                <NRF_PSEL(SPIM_MISO, 0, 17)>;
-            low-power-enable;
-        };
-    };
-};
-
-// For the left side overlay
-&spi0 {
-    status = "okay";
-    compatible = "nordic,nrf-spim";
-    pinctrl-0 = <&spi0_default>;
-    pinctrl-1 = <&spi0_sleep>;
-    pinctrl-names = "default", "sleep";
-    cs-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
-    trackball_left: trackball_left@0 {
-        status = "okay";
-        compatible = "pixart,pmw3610";
-        reg = <0>;
-        spi-max-frequency = <2000000>;
-        irq-gpios = <&gpio0 6 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;
-        scroll-layers = <5>;
-        zmk,left-side;  // Add this line to indicate it's the left trackball
-    };
-};
-/ {
-    trackball_listener_left {
-        compatible = "zmk,input-listener";
-        device = <&trackball_left>;
-        side = "left";  // Add this line
-    };
-};