Some comments assume this is for video editing. It is not, it is for video compositing which is something utterly different. Node-based systems for this task a

Some comments assume this is for video editing. It is not, it is for video compositing which is something utterly different. Node-based systems for this task are an industry standard that has emerged over the first twenty years (~1980--2000) of CGI for VFX.[1] The only alternative for this kind of work may indeed be a text (code) based system. You can export node graphs as text files in many such apps. But no one edits them. The majority of users are artist types who will not touch anything that looks like code with a ten foot pole. [1] I'm an ex VFX industry professional. You can take my word for it.