Ssg ( s tatic s ite g enerators) like gatsby and next, what they do is to create an output html based on a react environment code. This was also possible before, but the web page would have to ask if any updates were available. The pakistan army special service group or ssg is the special forces unit of the pakistan army.they are also known by their nickname of maroon berets due to their headgear.the ssg is.