diff --git a/cdb_Sustem.h b/cdb_Sustem.h
new file mode 100644
index 0000000..39c16d1
--- /dev/null
+++ b/cdb_Sustem.h
@@ -0,0 +1,39 @@
+//TODO finland up
+
+//#include <stddef.h>
+
+// TODO should propably be placed in a global header
+#define sus_Bool char
+#define sus_True 1
+#define sus_False 0
+
+#define SUS_FILE_TEMP    (1UL << 0)
+#define SUS_FILE_NEW     (1UL << 1)
+#define SUS_FILE_NOTHING 0UL
+
+//Naming: firstly the package, then the topic, lastly the operation
+
+//Operating System independent implementation
+typedef struct sus_File_impl * sus_File;
+
+// File IO API
+//sus_File sus_file_OpenInMem(char * fileName, unsigned long parameter);
+sus_File sus_fileOpenInMem(char * fileName, unsigned long parameter); // Map a file into the memroy of the current process
+//void * sus_fileOpenNewinMem(char * fileName); //prevent user errors
+//void * sus_fileOpenTempFileinMem(char * fileName);
+
+void * sus_fileFileToMemroy(sus_File file); //retrieves the memroy Pointer of where the file was mapped in memroy
+
+sus_Bool sus_fileExists(char * fileName); //check if a file exists in the specified path with the specified name
+void sus_fileClose(sus_File file); //Closes the file mapping and all the system specific stuff for that mapping
+void sus_fileFlush(sus_File file); //Flushes the filemapping; synchronize the written data in the filemapping to the actual file on disk (without blocking for better performance)
+void * sus_fileResize(sus_File file, signed long appendBytes); //if appendBytes is negative, the file shrinks. This prevents me from definining a new function for retreving the file Size
+void sus_fileDelete(char * fileName);
+void sus_fileRename(char * fileName, char * newFileName);
+
+// Memory API
+void * sus_heapAlloc(size_t bytes); // returns NULL, if there is no memroy left or an error occured
+void * sus_heapResize(void * memroy, size_t newBytes); // returns NULL, if there is no memroy left or an error occured
+void sus_heapFree(void * memroy); // what should this function do, if an error occurse..
+
+// Networking API -- coming soon, cuz idk
\ No newline at end of file