its not purely laravel, but if you take a look at the vendors content, there are some components of laravel in it, but it also removes a significant part of functions, they felt they dont require.
So, yeah, maybe a custom framework of sorts that they built, or heavily modded laravel.
All in all, they have very nice and neat code.
from how the code is, its even possible to create your own custom version, and merge new updates they add, as they also provide access to github, so you have the full git commit changes, to enbale merging code.
