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AnvilStack – EU-sovereign web engineering

From vibe code
to product.

Your idea, your AI prototype or your platform becomes a production-ready system: built at AI speed, hardened with engineering expertise. GDPR-compliant, hosted in Germany.

Free · approx. 30 minutes

anvilstack deploy
$ anvilstack deploy --target hetzner --region eu
████████████████████ Analyzing codebase...
FIX SQL injection in /api/users/query resolved
FIX Auth bypass in /auth/login patched
FIX API keys removed from client bundle
FIX Rate limiting enabled on /api/*
FIX CSRF protection implemented
MIGRATION Infrastructure → Hetzner Cloud (eu-central)
MIGRATION CI/CD pipeline configured
DEPLOY GDPR-compliant production started
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
Fixed: 5 critical · 47 dependencies updated
Status: PRODUCTION-READY ✓
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
45%
of AI-generated code contains security vulnerabilities
Veracode GenAI Code Security Report, 2025
around 2.1×
cheaper than AWS at the same dedicated configuration
Hetzner vs. AWS, as of June 2026
around 61%
of Western European CIOs plan to rely more on local cloud providers
Gartner, November 2025
01 – The vibe-coding trap

Why do AI prototypes fail in production?

AI prototypes fail in production because tools like Lovable, v0 and Bolt account for no security, compliance or sovereignty. AnvilStack closes exactly that gap: we take over your working prototype and make it production-ready.

Risk 1 – Insecure code
over 2,000
vulnerabilities found across roughly 5,600 vibe-coded applications
Escape.tech, 2025
over 400
exposed secrets and API keys in AI-generated codebases
Escape.tech, 2025
over 175
cases of exposed personal data (PII) in production
Escape.tech, 2025
over 35
new CVEs in March 2026 alone caused by AI-generated code
Georgia Tech SSLab, 2026
Real-world incident – February 2026
The Moltbook data leak

A social-networking platform built entirely through vibe coding had a misconfigured database that exposed around 1.5 million authentication tokens and around 35,000 email addresses. No human developer ever reviewed the code.

Source: Wiz Research, February 2026

“Developers do not need to specify security constraints to get the code they want, effectively leaving secure coding decisions to LLMs. Our research reveals GenAI models make the wrong choices nearly half the time, and it’s not improving.”

— Jens Wessling, CTO, Veracode (2025 GenAI Code Security Report)
Risk 2 – Compliance & liability

AI solves the building. Not the being allowed.

AI builds you an application in days – and a privacy policy in seconds. You are liable all the same. Since 2024, five new digital laws for software and online platforms have come into force; the final two deadlines are still ahead this year. A model writes code, but it takes on no responsibility – and under the NIS2 implementation act, management is now personally liable.

  • 28.06.2025in force
    BFSG – Accessibility
    Accessibility is mandatory for digital services offered to consumers. Fines up to €100,000 plus the risk of formal warnings.
    eRecht24
  • 12.09.2025in force
    EU Data Act
    New obligations on data access, data sharing and cloud-switching rights.
    European Commission
  • 06.12.2025in force
    NIS2 implementation act
    Cybersecurity obligations and personal management liability. No transition period.
    German Federal Government
  • 02.08.2026deadline
    AI Regulation (EU AI Act)
    Transparency obligations become fully applicable. Breaches: up to €15M or 3% of annual turnover.
    AI Act Implementation Timeline
  • 11.09.2026deadline
    Cyber Resilience Act
    24/72-hour reporting duty for actively exploited vulnerabilities.
    European Commission
New since December 2025
Management liability

Under the NIS2 implementation act, management is liable for cybersecurity failures – personally and with their private assets. That responsibility cannot be delegated to an AI model. Around 29,500 companies across 18 sectors are affected, with no transition period.

Source: BDO, six months of the NIS2 implementation act, 2026

Vibe coding makes the building cheap. Everything after it – security, compliance, liability – only makes it more expensive.

AnvilStack anvil symbol – forging prototypes into production
02 – The ANVIL system

How does a prototype become a production system?

Our approach has a name: the ANVIL system. In five steps – from an honest stocktake to sovereign operation – your prototype becomes a production system. Built at AI speed, hardened with engineering expertise. Every project begins with step A.

  1. A
    Step 01

    Analysis

    The honest stocktake.

    No honest analysis → every investment is a leap in the dark.

    We examine what already exists: code, architecture, infrastructure, compliance. Your prototype reveals what you truly need more precisely than any spec sheet. You receive an audit report, a prioritised roadmap and a dependable cost plan.

    Result: You decide on facts, not hope: you know where you stand and what the path to production costs.

  2. N
    Step 02

    New design

    The blueprint that belongs to you.

    No blueprint → no control over your own product.

    We design your product from the ground up: target architecture, UX/UI, data model and infrastructure. Where your data lives and under which law it is processed is decided here: GDPR compliance and EU sovereignty from the start, not retrofitted later. Every decision documented and justified. No black boxes.

    Result: A blueprint you understand and that belongs to you: from the data model to the EU infrastructure.

  3. V
    Step 03

    Validation

    The prototype that stays.

    No validation → months of development missing the market.

    We build your prototype with AI acceleration but engineering discipline. You test early with real users, on a foundation that survives the path to production rather than a throwaway prototype.

    Result: A working prototype that does not have to be thrown away. You see your product in weeks, not months.

  4. I
    Step 04

    Implementation & hardening

    Every line senior-reviewed.

    No hardening → a data leak instead of a launch. 45% of AI-generated code contains security vulnerabilities.

    We turn the validated prototype into your MVP and harden it against the OWASP Top 10. Automated tests, clean CI/CD, every line of code in senior review. AI speed stays, security gaps go.

    Result: A system that withstands an audit. And real customers.

  5. L
    Step 05

    Launch & ongoing operation

    Sovereignty that pays off.

    No sovereign operation → dependency instead of scaling.

    We take your MVP live on EU infrastructure (Hetzner, GDPR-compliant, German data centre) and run ongoing operations: monitoring, incident response, scaling – with the team that built it. Your sovereignty becomes a selling point toward your own customers.

    Result: Your platform: live, sovereign, under EU law. Your data stays in Europe, your costs stay predictable.

Chaotic prototype code transformed into solid production architecture
03 – The offer

What does a production system cost?

One engagement, one fixed price, one outcome: in about three months we take your prototype through all five steps of the ANVIL system to a production-ready, EU-sovereign system. No hourly rate, no surprises – you know your investment before we begin.

Flagship engagement

From prototype to production system

from €36,000
Fixed price · around 3 months

The complete ANVIL system, from analysis to ongoing operation. Included:

  • Audit report, prioritised roadmap and a dependable cost plan
  • Target architecture, UX/UI and data model as a documented blueprint
  • Validated prototype, tested early with real users
  • Hardened MVP against the OWASP Top 10, every line senior-reviewed
  • Go-live on EU infrastructure (Hetzner, GDPR) including operation

The exact scope and price follow from the free initial consultation and the subsequent analysis. Higher accordingly for more complex requirements.

Timeline

  • A – Analysis2 to 5 days
  • N – New design3 to 5 days
  • V – Validation5 to 10 days
  • I – Implementation10 to 20 days
  • L – Launch & handover2 to 5 days

Total duration around 3 months. Maintenance support through the end of the third month included.

Quality & support

  • Weekly check-in meetings, so you track every step of progress
  • The same senior team from analysis to operation, no handoff
  • A direct line via WhatsApp, phone and video call
  • Internal runbooks and automated tests to industry standard

Your effort

Around one hour per week for the check-ins, plus a one-off onboarding workshop of two to three hours at the start. We handle the rest.

In use at

Glimpii Doku App

A documentation platform, built by AnvilStack and hosted EU-sovereign.

glimpii-doku.com →
04 – Digital sovereignty

Why is digital sovereignty decisive?

AnvilStack relies on digital sovereignty because the US CLOUD Act means your data on AWS Frankfurt remains accessible to US authorities. Around 61% of Western European CIOs plan, according to Gartner (2025), to rely more on local cloud providers. AnvilStack builds exclusively on EU-owned infrastructure – compliant with the GDPR and free of US jurisdiction.

  • 100% EU-owned infrastructure
    Hetzner, Germany. No US parent company. No foreign ownership. Fully under EU law.
  • Zero CLOUD Act exposure
    No US jurisdiction. No forced data disclosure. Your data stays under your legal control.
  • Native GDPR compliance
    Compliance built in from day one. No afterthought. Data protection at the architecture level.
  • Around 7× cheaper than AWS
    Comparable compute, a fraction of the cost. Up to 20 TB of outbound traffic included. No surprise bills.
    Hetzner vs. AWS, as of June 2026
  • Sovereign identity management
    Keycloak as a self-hosted identity provider – on your own infrastructure. Magic links, passwordless auth, SSO. No dependency on Auth0 or Okta.
  • Production-ready K3s clusters
    Kubernetes on Hetzner – fully set up and operated by us. With Grafana, Prometheus and Loki for seamless monitoring. Enterprise-grade without enterprise costs.
  • No vendor lock-in
    Open standards. Portable infrastructure. You own every line of code and every deployment script.
around 61%

of Western European CIOs and tech decision-makers plan to increase their use of local cloud providers in 2026.

Gartner, November 2025

AWS Frankfurt and Azure Germany do not make your data sovereign. Only EU-owned, EU-regulated infrastructure does.

European data centre in Germany with an EU flag
05 – Built with

Which technologies does AnvilStack use?

AnvilStack relies on battle-tested open-source technologies: TypeScript and React on the frontend, PostgreSQL and Go on the backend, Kubernetes (K3s) on Hetzner Cloud with Terraform, ArgoCD and Grafana. No vendor lock-in – you own every line of code.

Frontend
TypeScript
Language
React / Next.js
Frontend
Tailwind CSS
UI & design
Backend
Python / FastAPI
Backend
Node.js / Fastify
Backend
PostgreSQL
Database (HA)
Redis
Cache & queue
AI & agents
OpenAI / Anthropic
LLM integration
LangGraph / LangChain
AI agents
Infrastructure
Hetzner Cloud
EU hosting
Kubernetes (K3s)
Orchestration
Docker
Container
Terraform
Infrastructure as code
Helm
Packaging
ArgoCD
GitOps
Security & identity
Keycloak
Identity & auth
HashiCorp Vault
Secrets management
Kyverno
Policy & compliance
Velero
Backup & DR
cert-manager
TLS certificates
Observability
Grafana
Dashboards
Prometheus
Metrics
Loki
Logs
OpenTelemetry
Tracing
CI/CD
TeamCity
Build & deploy
GitLab
Registry & CI
07 – Frequently asked

What are the most common questions about AnvilStack?

Honest answers to the questions that really count before an initial call: from cost and building it yourself with AI to EU hosting.

No – in fact we're often more affordable than expected, and our pricing is transparent from the very first glance at the homepage. People who think we're expensive are usually comparing the wrong thing: an offer that doesn't include security, compliance and production-readiness at all, or fast AI code that you pay for a second time later to fix. Measured against what a reliably running system actually costs, we're rarely the expensive option – we're the one you don't pay for twice. Tell us in the initial call what you're comparing against, and we'll show you openly where the difference lies.

Absolutely – and we encourage it. We use Claude Code ourselves, every day. AI gets you to a working demo in days, but not to production. The hard 80% comes afterwards: security, an architecture that scales under load, data protection, testing, deployment, and the liability when something fails. According to Veracode (GenAI Code Security Report, 2025), 45% of AI-generated code contains security vulnerabilities – AI produces plausible code, but no judgment about which shortcut becomes tomorrow's breach. We're not the alternative to AI; we're the engineering layer that turns AI output into a system you can take live responsibly.

Yes. In a free initial consultation we analyse your existing codebase. We keep what works, identify security gaps and architectural debt, and build a production-ready system around your validated concept. We never discard working code unnecessarily.

A lot can be deferred – but not everything. You don't need perfect architecture from day one; that just burns budget before the market has validated your product. But a foundation that can't bear load fails exactly when you succeed – at the first real surge, when new features suddenly take twice as long. A full rebuild then typically costs months, not weeks. So we harden now what has to survive the first surge, and deliberately defer the rest – you're not choosing between fast-and-cheap now and clean-someday.

The real question isn't which tool, but: rent or own? Builders like Webflow create dependency – you rent your product, you're bound to their prices, limits and continued existence, and you never own the platform, the opposite of digital sovereignty. We don't use WordPress at all, not even for simple sites: the plugin, update and security treadmill is permanent effort and attack surface. And it isn't even a speed argument – with AI-assisted development (Claude Code plus design tooling) we build faster and more efficiently than a WordPress setup, and the result belongs to you, with no lock-in.

That's understandable – and exactly why we suggest an honest question. The money already spent is gone no matter what you decide; it shouldn't steer the next decision. The real question is: if you started from scratch today, with everything you now know – would you build it the same way? The answer to that protects the next euro, not the last one. So you don't have to decide blind, our platform assessment is free: you get a clear evaluation and a concrete offer before you commit. And we deliver as one coherent whole rather than patchwork – because half-finished is usually exactly what cost the money before.

Because 'everyone does it' is neither a security nor a legal strategy. US cloud providers are subject to the CLOUD Act, which lets US authorities access your data – regardless of where it is physically stored. Even AWS Frankfurt doesn't make your data sovereign. EU-owned providers like Hetzner offer native GDPR compliance, zero CLOUD Act exposure, and are roughly 2–10× cheaper at comparable configurations (Hetzner vs. AWS, as of June 2026).

When the only goal is to put something up fast – without a minimum standard of quality, security and compliance. We could technically cut those corners, but then quality can't be retrofitted later, and that harms both sides. If your priority is 'as cheap and fast as possible', another provider is a better fit – and we'll tell you that openly in the initial call. We work with companies that see their platform as a foundation, not a throwaway product.

We provide strategic technical leadership, not just development hours. Every engagement is carried by a dedicated senior team covering strategy, project steering, engineering and long-term operation. We specialise exclusively in turning AI prototypes into production-ready, EU-sovereign platforms – that's all we do.

We primarily serve SMEs in Germany, Austria and Switzerland, but we work with any European company that values digital sovereignty and engineering quality. We communicate in both German and English.

Ready?

How do you get started with AnvilStack?

AnvilStack offers a free platform assessment as your entry point: a 30-minute intro call, a code review and a written evaluation with a concrete offer – no obligation, no cost.

How we work

Or reach us directly: info@anvilstack.eu · (+43) 316 447050