Updated Claud's instruction file.

CLAUDE.md

@@ -10,7 +10,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 - **Full keyboard navigation** - No mouse required for any configuration task
 - **Screen reader compatible** - Works seamlessly with Orca and other assistive technologies
 - **Window mode by default** - Opens configuration window directly (use `--tray` for system tray)
-- **English-only interface** - Translation system removed for simplicity and better screen reader performance
+- **English-only interface** - Translation system removed for simplicity 
 - **Separate config directory** - Uses `~/.config/thunderpad/` to coexist with QJoyPad
 
 ## Critical Development Principle
@@ -52,7 +52,7 @@ cmake .. -DCMAKE_BUILD_TYPE=Debug
 - Qt5Widgets, Qt5X11Extras
 - libudev (optional, for automatic device detection)
 - Linux joystick driver support
-- For accessibility testing: Orca screen reader
+- For accessibility testing: Orca screen reader or Cthulhu screen reader
 
 ## Code Architecture
 
@@ -135,19 +135,19 @@ All source code has been systematically updated:
 ```bash
 # Build and run locally (default: window mode)
 make
-./thunderpad
+DISPLAY=:0 ./thunderpad
 
 # Test with system tray mode
-./thunderpad --tray
+DISPLAY=:0 ./thunderpad --tray
 
 # Test with specific layout
-./thunderpad "layout-name"
+DISPLAY=:0 ./thunderpad "layout-name"
 
 # Update device list in running instance
-./thunderpad --update
+DISPLAY=:0 ./thunderpad --update
 
 # Test accessibility with screen reader
-# Start Orca first, then launch thunderpad
+# Start Orca or Cthulhu first, then launch thunderpad
 ```
 
 ### Accessibility Testing Requirements
@@ -160,7 +160,7 @@ make
    - Ensure Escape key behavior is consistent
 
 2. **Screen Reader Test**:
-   - Launch with Orca running
+   - Launch with Orca or Cthulhu running
    - Verify all interface elements are announced properly
    - Check that focus changes are announced
    - Ensure list items have descriptive labels
@@ -191,7 +191,6 @@ make
 5. **Keyboard-only operation**: Every function accessible via keyboard
 
 ### Removed Features (For Accessibility)
-- **Translation system**: English-only interface reduces complexity
 - **FlashRadioArray widgets**: Replaced with standard Qt accessible widgets
 - **Click-to-configure interfaces**: Replaced with explicit configure buttons
 - **System tray requirement**: Optional with `--tray` flag
@@ -255,7 +254,6 @@ src/
 - **Interface redesign**: Complete overhaul for keyboard navigation
 - **Widget replacement**: Accessible alternatives to custom widgets
 - **Default behavior**: Window mode instead of system tray
-- **Translation removal**: English-only for screen reader performance
 - **Focus management**: Explicit tab order and focus policies
 
 ### Development Impact