Turborepo globalEnv versus per-task env for build-time public variables
Cache key stability across deployment environments Turborepo v2 defaults to strict environment variable mode, where only variables declared in globalEnv or a task's env array participate in the task hash. Framework-prefixed variables such as NEXT_PUBLIC_* or VITE_* are inlined at build time, so their values must vary the cache key when the target environment
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