diff --git a/src/vkvm.h b/src/vkvm.h
new file mode 100644
index 0000000..a7b9788
--- /dev/null
+++ b/src/vkvm.h
@@ -0,0 +1,74 @@
+#ifndef LIBRARY_VKVM_H
+#define LIBRARY_VKVM_H
+
+typedef int type_todo;
+
+private struct interruptVector {
+    int pid;
+    int signal;
+};
+
+//enum config file defaults {
+const int max_width_pixels = 800;
+const int max_height_pixels = 600;
+const int max_textMode_width;
+const int max_textMode_height;
+// TODO: add ControlRegisters members here
+//TODO: add get/set methods
+//};
+
+
+enum GraphicMode {
+    Text,
+    BlackWhite,
+    Gray_256,
+    TrueColor;
+};
+
+private struct controlRegisters {
+    int layout_version
+    int trigger_reset;
+    int width_pixels;
+    int height_pixels;
+    GraphicMode graphicMode;
+    int autoRedrawInterval;
+    int timerInterruptInterval;
+    type_todo bw_background_color;
+    type_todo bw_foreground_color;
+    int textMode_width;
+    int textMode_height;
+    int textMode_font;
+    int textMode_font_width;
+    int textMode_font_height;
+    int mouse_pos_x;
+    int mouse_pos_y;
+    char keyboardBuffer[16];
+    int keyboardBuffer_index_w;
+    int keyboardBuffer_index_r;
+};
+
+//TODO: add init
+//TODO: add methods for a event handling approach
+//TODO: add methods for a pooling approach
+
+// interrupts
+/*
+1 timer
+2 mouse move
+ mouse button
+ key down
+ key up
+ reread ControlRegisters
+ redraw GUI // opposite direction (i.e. client to GUI)!
+ render Text // text mode client -> text rendering process -> redraw GUI
+ */
+
+// Shared Memory Layout
+// --------------------------------------------------------------------
+// struct ControlRegisters
+// char reserved[1024]
+// Interrupt Vector Table [64]
+// text area [max_textMode_width * max_textMode_height]
+// pixel area [max_height_pixels * max_height_pixels * sizeof(uint_32)]
+
+#endif
\ No newline at end of file