Sovereign Infrastructure Services
Audit, deploy, and operate open-source infrastructure you fully control — sovereign, security-hardened, and free of vendor lock-in.
About Our Sovereign Infrastructure Services
At Private Garden, we help organizations take back control of their infrastructure by building on open-source tools designed for ownership and portability. Sovereignty isn’t a marketing claim for us — it’s a structural choice that runs through every architectural decision, from the hypervisor to the CI pipeline. Security is part of that same structure: we design for hardening and compliance readiness from day one, not as a retrofit.
Key Benefits
- Own your stack end-to-end — no proprietary lock-in, no opaque dependencies you can’t replace
- Reproducible infrastructure through infrastructure-as-code best practices
- Portable by design — on-premise, bare-metal, or private cloud, your choice
- Modern virtualization with Incus, a mature OSS alternative to proprietary hypervisors
- Secure by design — hardening and compliance readiness built into the architecture from day one, not retrofitted after deployment
- Knowledge transfer, not dependency — we hand over runbooks, architecture docs, and working sessions so your team can operate independently
- Optional managed operations for teams that own the strategy but want expert hands-on
Related services
- Cybersecurity — CSPN and Common Criteria certification accompaniment for products you deploy on this infrastructure.
- Development — upstream OSS sponsorship and client-facing feature delivery for the open-source projects your stack depends on.
Legal notice
Private Garden’s Sovereign Infrastructure service is an advisory and engineering engagement. Private Garden is not ANSSI-qualified under the PASSI (Prestataire d’Audit de Sécurité des Systèmes d’Information), PDIS (Prestataire de Détection d’Incidents de Sécurité), PRIS (Prestataire de Réponse aux Incidents de Sécurité), or PAMS (Prestataire d’Administration et de Maintenance Sécurisées) qualification schemes. Our engagements do not constitute an ANSSI-qualified audit, incident response, or managed service, and do not produce the legal effects of such. Clients requiring a qualified provider for regulated compliance must engage a separately qualified entity.
Our Services
We offer three infrastructure engagement modes, covering the full lifecycle of a sovereign open-source stack:
🔍 Sovereign Infrastructure Audit
A 3 to 7-day assessment of your current infrastructure against sovereignty and security criteria. We review your architecture, configurations, and dependencies to produce an actionable roadmap for reducing vendor lock-in and strengthening your security posture. Ideal when you're evaluating where you stand before committing to a migration.
🛠️ Infrastructure Deployment & Migrations
A 15 to 30-day engagement to build or migrate your infrastructure onto a sovereign open-source stack (e.g. VMware to Incus). We design, deploy, and document the new environment end-to-end with you. We determine together your needs and technological heritage and compare them against our reference stack — Incus (LXD successor) for orchestration, with strongSwan as VPN, etc. We assist with on-premise or private cloud hosting. Never a public cloud vendor you can't replace. Ideal when you've decided to migrate and need a partner who won't lock you back in.
🔧 Sovereign Infrastructure Operations
A monthly retainer to run your sovereign stack after deployment: patching, monitoring, incident response, capacity planning, and scheduled architecture reviews. Your infrastructure stays yours — we just keep it healthy. Ideal when your team owns the strategy but wants expert hands on the keyboard.
Our Methodology
Our infrastructure engagements follow a structured methodology designed to deliver reproducible, portable results you fully own at the end:
Scope Definition
We define the perimeter together: which systems, which dependencies, which sovereignty goals, and which compliance constraints matter to your organization. We take into account your long-term objectives in terms of security, compliance, and AI.
Architecture Review
We document your current state and map it against our sovereign reference stack to identify gaps, risks, and migration opportunities — without judging what already works. This includes a security review.
Design & Planning
We produce a target architecture tailored to your organization, including a component inventory, network design, data flows, and a phased migration plan that minimizes disruption.
Deployment
We build the target environment defined through collaborative exchanges and infrastructure review. We deliver reproducible infrastructure-as-code your team can extend after we leave.
Handover & Documentation
We transfer operational knowledge through runbooks, architecture documents, and working sessions. Your team learns how to operate the stack independently.
Continuous Operations (Optional)
For organizations that prefer ongoing managed operations, we continue running the stack under a monthly retainer, with regular reviews and clear escalation paths.
Why Choose Private Garden
We build on modern open-source infrastructure — Incus (LXD successor) for unified VM and container management, and mature Linux tooling throughout. Every deployment is reproducible, portable, and free of proprietary lock-in. When we hand over, you own the stack: the code, the documentation, and the operational knowledge. Security hardening and compliance readiness are first-class concerns in every engagement — we design for them from the start and can help you move toward your compliance objectives, even outside a formal qualification framework. Important: Private Garden is an independent infrastructure and security advisor — we are not ANSSI-qualified under the PASSI, PDIS, PRIS, or PAMS qualification schemes. Our infrastructure engagements are advisory and architectural in nature: we do not issue ANSSI-qualified audit certificates, and we do not guarantee specific compliance or audit outcomes. Clients who require a qualified audit must engage a separately qualified provider.
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