The Private Stack Is Live: The Complete Guide to Building Your Own AI Infrastructure
Your data. Your infrastructure. Your AI. No APIs, no subscriptions, no dependencies.
After 27+ years building enterprise infrastructure for Fortune 500 companies, and running our own AI infrastructure in production at Leeuwwolk, today we're launching something we've been building for months: The Private Stack.
The Problem Nobody Solves
There are thousands of YouTube tutorials showing you how to install Ollama. Or spin up a Docker container. Or run a model on your laptop.
None of them tell you what to do next.
How do you connect JWT authentication to your database? How do you monitor with Prometheus and Grafana so your model doesn't crash at 3 AM? How do you harden a server that's going to be exposed? How do you go from "works on my machine" to "runs in production with an SLA"?
That jump — from hobby to production — is exactly what nobody documents. Until now.
5 Reasons to Stop Relying on AI APIs
Before we talk about the product, let's talk about the problem. We published a free guide — "5 Reasons to Stop Relying on AI APIs" — that lays out the business case. Here are the core ideas:
Your data isn't yours. Every prompt you send to an API is processed on infrastructure you don't control, under terms you didn't negotiate. With private AI, your data never leaves your network. Compliance you can demonstrate, not just promise.
No governance, no control. Who has access to your prompts? Where are they stored? For how long? If your industry has regulations — healthcare, finance, legal — "I don't know" isn't an acceptable answer.
Open models already compete with the cloud. In 2023 they were inferior. In 2026, models like Qwen 3 and DeepSeek compete directly with GPT-4 on most tasks. And if you fine-tune for your specific use case, they frequently outperform the generic ones.
Dependency = vulnerability. The provider raises prices, your margins shrink. The API has an outage, your service goes down. They deprecate your model, you rewrite your code. Your business shouldn't depend on another company's product decisions.
The time is now. Models got smaller without losing quality, the software ecosystem matured, and the orchestration tools already exist. Those who move now will have years of operational advantage.
Download the free PDF here — with the real numbers to make the decision.
What Is The Private Stack
Two technical playbooks, designed to be followed in sequence:
Playbook 1: Self-Hosted Infrastructure (7 modules)
Here you build the foundation: your first Linux server, segmented networking with VLANs and Pi-hole, essential services (Caddy, PostgreSQL, Vault, JWT authentication), full monitoring with alerts, real hardening with SSH, disaster recovery and runbooks, and how to use a Raspberry Pi as serious infrastructure.
Playbook 2: Deploy Your Own AI Stack (6 modules)
On top of that foundation, you add the brains: hardware and GPU selection with real prices, the software stack (Ollama, llama.cpp, vLLM), which model to use for which use case, the transition from hobby to production, and multi-GPU, multi-server scaling.
The bundle includes an exclusive integration module: how to make the infrastructure and AI work as a unified system.
Not Theory
At Leeuwwolk we run AI products in production — legal document processing, transcription, electronic signatures — all running on our own infrastructure. No external APIs for sensitive workloads. No sending client data to third parties.
The Private Stack is the documentation of that real stack. What a consulting firm charges $50,000 USD to implement, documented module by module with scripts, configurations, and security checklists.
Launch Pricing
Until July 15, 2026, early bird pricing is active:
Individual playbook: $69 USD (regular price $89)
Full bundle (13 modules + exclusive integration module + 12 months of updates): $119 USD (regular price $169)
Visit theprivatestack.com — download the free PDF and decide for yourself.
The Private Stack is a product of Leeuwwolk — The PrivAIte Company.