diff --git a/src/dev/chat.c b/src/dev/chat.c
new file mode 100644
index 00000000..c156f82a
--- /dev/null
+++ b/src/dev/chat.c
@@ -0,0 +1,6 @@
+#include <stdbool.h>
+#include "macros.h"
+#include "chat.h"
+
+bool exec_dev_chat_command(UNUSED char* command) { return false; }
+void dev_display_chat_commands(void) { }
diff --git a/src/dev/chat.h b/src/dev/chat.h
new file mode 100644
index 00000000..fb27d7c0
--- /dev/null
+++ b/src/dev/chat.h
@@ -0,0 +1,4 @@
+#pragma once
+
+bool exec_dev_chat_command(char* command);
+void dev_display_chat_commands(void);
diff --git a/src/dev/controller_keyboard_debug.c b/src/dev/controller_keyboard_debug.c
new file mode 100644
index 00000000..24948f3c
--- /dev/null
+++ b/src/dev/controller_keyboard_debug.c
@@ -0,0 +1,6 @@
+#include <stdbool.h>
+#include "macros.h"
+#include "controller_keyboard_debug.h"
+
+void debug_keyboard_on_key_down(UNUSED int scancode) {}
+void debug_keyboard_on_key_up(UNUSED int scancode) {}
diff --git a/src/dev/controller_keyboard_debug.h b/src/dev/controller_keyboard_debug.h
new file mode 100644
index 00000000..99dc3d9e
--- /dev/null
+++ b/src/dev/controller_keyboard_debug.h
@@ -0,0 +1,4 @@
+#pragma once
+
+void debug_keyboard_on_key_down(UNUSED int scancode);
+void debug_keyboard_on_key_up(UNUSED int scancode);