>Isn't next.js the "source system"
Absolutely not. You are pulling from something else. If you need authorization to view a page that means it's more than likely not going to be SSG or ISR, so both the Next.JS application and the source system should be doing authorization checks.
>If you can't rely on your middleware then you are using the wrong tech.
"If you can't rely on server less functions to run"
I mean, I can't help you there if that's your expectation that serverless functions will always run correctly.
>Just attempt to shrug it away as a "trust me bro" check.
If you lose identity and your system just chugs along anyway then there isn't a tech stack in the world that can help you.
>I haven't heard
Because you're being a dense muppet?