doom is now using the native api, add a PEB + TEB to replace the dummy and the awkward argument passing to processes, all allocations are zeroed because i had enough, small readme changes and dedication.

code/posix/posix_proc.c

@@ -5,6 +5,20 @@
 #include "posix.h"
 #include "posix_path.h"
 
+
+static SYS_PEB* gProcessPeb = NULL;
+
+static SYS_PEB* PosixPeb(void) {
+    if (!gProcessPeb) gProcessPeb = SysGetPeb();
+    return gProcessPeb;
+}
+
+__declspec(dllexport) const char* posix_get_command_line(void) {
+    SYS_PEB* peb = PosixPeb();
+    if (!peb || peb->Magic != SYS_PEB_MAGIC || !peb->CommandLine) return "";
+    return peb->CommandLine;
+}
+
 // pid -> proc handle table (user-mode side, for waitpid)
 #define PROC_TABLE_SIZE 32
 typedef struct {