Lots more code written, and I think most of it's OK; but it doesn't compile yet.

src/c/psse.h

@@ -0,0 +1,30 @@
+/**
+ *  psse.h
+ *
+ *  Post Scarcity Software Environment: entry point.
+ *
+ *  Start up and initialise the environement - just enough to get working
+ *  and (ultimately) hand off to the executive.
+ *
+ *
+ *  (c) 2026 Simon Brooke <simon@journeyman.cc>
+ *  Licensed under GPL version 2.0, or, at your option, any later version.
+ */
+
+#ifndef __psse_psse_h
+#define __psse_psse_h
+
+#include <getopt.h>
+#include <locale.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <wchar.h>
+
+#include "debug.h"
+#include "memory/memory.h"
+#include "memory/stack.h"
+#include "version.h"
+
+#endif