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What I've learned building MVPs, fixing slow Next.js apps, and shipping AI features that don't fall apart in production. Written for founders who want the honest version, not the polished agency version.
Use Next.js 16.3's Turbopack build cache safely in CI: choose cache keys, measure warm builds, prevent stale outputs, and keep a clean-build escape hatch.
A practical identity and access blueprint for SaaS AI agents: separate users, workloads and tools, scope authority, add approvals, and preserve audit trails.
A practical tenant-isolation blueprint for SaaS founders: scope every request, enforce policy at APIs and data, test boundaries, and plan enterprise tiers.