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Next.js 15 guides for self-hosted AI SaaS: Docker, Caddy, Auth.js, Stripe, LangGraph, pgvector, and Hetzner cost.

5 posts in Hardening & Ops

• 29 Oct 2026 · Hardening & Ops

  Self-Hosting a Next.js 15 AI SaaS, Architecture and Cost

  Serverless limits vs a 4.50 euro Hetzner VPS, unit costs at 1k to 50k MAU, and when a starter kit beats wiring Stripe and Caddy yourself.

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• 28 Oct 2026 · Hardening & Ops

  Serverless vs a VPS for AI SaaS, Real Cost at 25,000 MAU

  Why Vercel duration caps and streaming egress hurt an AI product at 25k MAU, and what a Hetzner Docker box costs for the same workload.

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• 28 Oct 2026 · Hardening & Ops

  Prometheus and Grafana for Next.js 15, Tracking LLM Token Burn

  How to expose prom-client metrics from a Next.js Route Handler, scrape them in Docker Compose, and graph token count and USD cost without a SaaS APM.

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• 28 Oct 2026 · Hardening & Ops

  Next.js 15 AI SaaS Starter Kits, Self-Hosted vs Cloud-Locked

  What you actually get from a self-hosted Docker starter versus a Vercel-shaped boilerplate, and how AgenticPacks Pro compares on auth, Stripe, RAG, and ops.

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• 28 Oct 2026 · Hardening & Ops

  Caddy for Next.js 15, Automatic SSL and Zero-Buffering SSE

  Why NGINX plus Certbot is the long way, how Caddy terminates TLS in Docker, and why flush_interval -1 is required for AI token streams.

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