When someone tells you to "Just fork it" it is always a power play from their side. They are saying it because they know that you alone can't do anything about it.
They know you can't fork it if you're not a coder.
They know you can't fork it if you only understand front-end stuff.
They know you can't fork it alone.
Telling someone you know can't fork it to do it is equivalent to Fuck off, or #ForkOff as some other people said it.