diff --git a/src/app/emu/dbg.h b/src/app/emu/dbg.h
new file mode 100644
index 00000000..c4441029
--- /dev/null
+++ b/src/app/emu/dbg.h
@@ -0,0 +1,56 @@
+#ifndef YAZE_APP_EMU_DBG_H_
+#define YAZE_APP_EMU_DBG_H_
+
+#include "app/emu/apu.h"
+#include "app/emu/cpu.h"
+#include "app/emu/ppu.h"
+
+namespace yaze {
+namespace app {
+namespace emu {
+
+class Debugger {
+ public:
+  Debugger()=default;
+  // Attach the debugger to the emulator
+  // Debugger(CPU &cpu, PPU &ppu, APU &apu);
+
+  // Set a breakpoint
+  void SetBreakpoint(uint16_t address);
+
+  // Remove a breakpoint
+  void RemoveBreakpoint(uint16_t address);
+
+  // Step through the code
+  void Step();
+
+  // Inspect memory
+  uint8_t InspectMemory(uint16_t address);
+
+  // Modify memory
+  void ModifyMemory(uint16_t address, uint8_t value);
+
+  // Inspect registers
+  uint8_t InspectRegister(uint8_t reg);
+
+  // Modify registers
+  void ModifyRegister(uint8_t reg, uint8_t value);
+
+  // Handle other debugger tasks
+  // ...
+
+ private:
+  // References to the emulator's components
+  // CPU &cpu;
+  // PPU &ppu;
+  // APU &apu;
+
+  // Breakpoints, watchpoints, etc.
+  // ...
+};
+
+}  // namespace emu
+}  // namespace app
+}  // namespace yaze
+
+#endif  // YAZE_APP_EMU_DBG_H_
\ No newline at end of file