Kronotai is a website about binary decompilation in general. That is the transformation of the executable program into the source code. Specifically this website is about holdec a closed-source decompiler for binary executables.
This website aims to track and document new developments on decompilers for production usage and also the scientific progress.
The focus of this website is not so much about the decompilation of virtual machines (VMs) like the Java-VM or the Flash-VM. There are however problems which are shared between the decompilation of VM binaries and native binaries.
More information can be found in the Blog.