It's like saying that all languages are the same as other languages with just different tokens and semantics. Sure, but those differences are what defines a lan

It's like saying that all languages are the same as other languages with just different tokens and semantics. Sure, but those differences are what defines a language. When something is "the same as some other piece of code with different variable names" it becomes it's own isolated solution, be it a library, framework, service, or software. We typically don't run our own SMTP servers, don't write our own databases and don't implement TCP/IP stack from scratch. When we're not doing all those things, typically what's left is innovation: i.e. building something that doesn't have an existing generic solution.