--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/sys.h	Fri Jan 10 12:37:59 2020 +0100
@@ -0,0 +1,41 @@
+/*
+ * sys.h -- system routines
+ *
+ * Copyright (c) 2020 David Demelier <markand@malikania.fr>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef MOLKO_SYS_H
+#define MOLKO_SYS_H
+
+/**
+ * \file sys.h
+ * \brief System routines.
+ */
+
+#include <stdbool.h>
+
+/**
+ * Initialize the system, should be called in the beginning of the main.
+ */
+bool
+sys_init(void);
+
+/**
+ * Close the system.
+ */
+void
+sys_close(void);
+
+#endif /* !MOLKO_SYS_H */