Default laptop key set to capslock. Keys that can be set to fenrir key or script key selectable via checkbox.

internal/console/native_linux.go

@@ -37,6 +37,13 @@ static int console_state(int fd, int *mode, unsigned char *leds) {
     return 0;
 }
 
+static int toggle_caps_lock(int fd) {
+    unsigned char leds;
+    if (ioctl(fd, KDGKBLED, &leds) < 0) return -errno;
+    if (ioctl(fd, KDSKBLED, (unsigned long)(leds ^ LED_CAP)) < 0) return -errno;
+    return 0;
+}
+
 static int console_usage(int fd, unsigned short *mask) {
     struct vt_stat state;
     if (ioctl(fd, VT_GETSTATE, &state) < 0) return -errno;
@@ -398,6 +405,16 @@ func (k *Keyboards) drain(device *Device, numLock bool, handle func(input.Decisi
 				return false, err
 			}
 		}
+		if decision.ToggleCapsLock {
+			file, err := os.OpenFile("/dev/tty0", os.O_RDONLY|syscall.O_NOCTTY, 0)
+			if err != nil {
+				return false, err
+			}
+			toggleErr := kernel_error(C.toggle_caps_lock(C.int(file.Fd())))
+			if err := errors.Join(toggleErr, file.Close()); err != nil {
+				return false, err
+			}
+		}
 		if decision.Forward {
 			if err := device.forward(uint16(event._type), uint16(event.code), int32(event.value)); err != nil {
 				return false, err