It&#x27;s intercepting system calls with ptrace, so it could easily fool the process into thinking its calls did exactly what was expected. A cursory glance through the code indicates that it mostly does. However, it looks like it doesn&#x27;t record changes to files so that they could be read <i>back</i> in by the application. So this will work for applications that read once and write once, but if the same file is written and read, it&#x27;ll probably break.