diff --git a/include/audio.hpp b/include/audio.hpp
new file mode 100644
index 0000000..92d37cf
--- /dev/null
+++ b/include/audio.hpp
@@ -0,0 +1,30 @@
+/*
+ * DISTRHO Cardinal Plugin
+ * Copyright (C) 2021-2022 Filipe Coelho <falktx@falktx.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 3 of
+ * the License, or any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * For a full copy of the GNU General Public License see the LICENSE file.
+ */
+
+#pragma once
+
+namespace rack {
+namespace audio {
+
+
+/* NOTE all the audio stuff (drivers, ports etc) is purposefully missing here, unwanted in Cardinal
+ */
+struct Port;
+
+
+} // namespace audio
+} // namespace rack
diff --git a/include/midi.hpp b/include/midi.hpp
index 9a4f691..1a6425a 100644
--- a/include/midi.hpp
+++ b/include/midi.hpp
@@ -26,13 +26,6 @@
  */
 
 #pragma once
-#include <vector>
-#include <set>
-
-#include <jansson.h>
-
-#include <common.hpp>
-#include <context.hpp>
 
 #include "choc/choc_SmallVector.h"
 
diff --git a/src/Makefile b/src/Makefile
index 5b75d1b..bc56652 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -113,6 +113,7 @@ RACK_FILES += Rack/dep/pffft/fftpack.c
 RACK_FILES += Rack/dep/osdialog/osdialog.c
 
 IGNORED_FILES  = Rack/src/asset.cpp
+IGNORED_FILES += Rack/src/audio.cpp
 IGNORED_FILES += Rack/src/common.cpp
 IGNORED_FILES += Rack/src/context.cpp
 IGNORED_FILES += Rack/src/dep.cpp
@@ -125,6 +126,7 @@ IGNORED_FILES += Rack/src/network.cpp
 IGNORED_FILES += Rack/src/plugin.cpp
 IGNORED_FILES += Rack/src/rtaudio.cpp
 IGNORED_FILES += Rack/src/rtmidi.cpp
+IGNORED_FILES += Rack/src/app/AudioDisplay.cpp
 IGNORED_FILES += Rack/src/app/MenuBar.cpp
 IGNORED_FILES += Rack/src/app/MidiDisplay.cpp
 IGNORED_FILES += Rack/src/app/Scene.cpp