This is insane to me, and validates my irrational dislike of next.
It's like being mad that Rails can't run on Python, or that React can't run on jQuery. Next already has its own build system, so of course it doesn't work with another build system.
It's also wise to use monorepo orchestration with build caching like Turborepo.
They did well on the turbo stuff, no doubt about it.
The main bottleneck with big projects in my experience is Typescript. Looking forward to the Go rewrite. :)