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Enterprise Open Source, Without the Lock-in

Modernize your infrastructure with confidence and an expert team by your side.

Your clients trust you with their data. That trust deserves a secure, sovereign infrastructure. We help SMEs, public organizations and independent professionals move to an infrastructure they truly control: sovereign hosting, GAFAM-free email, offsite backup and digital independence audit. You know exactly where your data lives and who can access it.

No vendor lock-in, no hidden surprises. A solid Open Source infrastructure, maintained by a responsive partner who knows your environment.

Secure and sovereign enterprise open-source solutions

Ready to take back control of your infrastructure?

Schedule a free consultation

Why Open Source? Three reasons that matter

Years of hands-on experience helped us identify what actually works — and what doesn't.

Not all open source is equal. We've spent years testing, deploying and maintaining solutions in real production environments — for SMEs, public organizations and research institutions. Our selection process goes beyond code quality and documentation: we evaluate real-world reliability, security track record, community activity and long-term viability. The result: a curated stack you can trust, maintain and scale without depending on any vendor.

You stay in control

Your data lives on your infrastructure. No vendor dependency, no hidden access. You define the security rules, the access policies, the backup strategy. That's the kind of control that earns — and keeps — the trust of your users and partners.

Auditable by design

Open source code is publicly reviewable. Independent security experts can inspect, audit and flag vulnerabilities — fast. This transparent model builds more resilient software than any closed, proprietary alternative.

Flexible and future-proof

A global community of developers means continuous improvement, diverse expertise and real innovation. Open source allows deep, secure customization — tailored exactly to your needs, not a vendor's roadmap.

In Their Own Words

Riki G. picture

Riki G.

Cheffe La Cuisine De Riki
LaCuisineDeRiki logo
Complete, Worry-Free Service

Thanks to Bernard, I'm fully focused on running my business. I don’t want to manage a website anymore. With the OpenSource Solutions built on Tiki, everything’s easy: I update my menus through dish cards, and it’s nicely online instantly. No more wasted hours fixing broken WordPress pages! Maintenance, security, hosting, all the stuff I don’t want to think about is handled.

Verified client
Olivier S. picture

Olivier S.

Directeur Olivier Seban
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Efficient support and smart solutions

Working with Bernard Sfez has been a real breath of efficiency. I particularly appreciate the speed of his support, the quality of the solutions he provides, and the creativity with which every issue is handled. Thanks to his approach, I’ve saved valuable time — and therefore money — while enjoying the peace of mind of a secure environment. A trusted partner I wholeheartedly recommend.

Verified client
Fiona N. picture

Fiona N.

Coord. projet Fiona Universe
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Patient and Efficient problem-solver

I couldn't figure it out, and Bernard did an excellent job quickly and efficiently. He was patient, explained things clearly, and my "silly" questions didn't bother him and received a clear answer. I really appreciated his help and expertise.

Verified client

Frequently Asked Questions

Bernard Sfez is the expert consultant, Tiki Wiki specialist, and senior project manager behind OpenSource Solutions. A recognized figure in the Open Source community, he actively shares his expertise through tutorials and technical contributions. As a full-stack developer, he blends this deep specialized knowledge with strategic project leadership to design and maintain sovereign web infrastructures.

We offer comprehensive evolving support for your platforms:

  • Migration & Deployment: Secure data transfer and seamless installation of your software solutions.
  • Security Audits: In-depth analysis of your existing instances to identify and mitigate vulnerabilities.
  • Continuous Maintenance & Security: Regular updates and proactive monitoring to ensure stability.
  • Optimized Hosting: Custom hosting solutions specifically configured for each software's technical requirements.
  • Innovation & Insight: We constantly explore and test new technological frontiers—whether it is AI (also in Open Source) or the latest modern cybersecurity challenges—to provide you with cutting-edge solutions.

See: https://opensourcesolutions.pro/Enterprise-Grade-Security-and-Support-Services

You are in the right place! OpenSource Solutions is a leading reference for Tiki Wiki expertise. Bernard Sfez, our senior consultant, is a recognized contributor with years of experience architecting complex Tiki platforms. Whether you need a simple setup or a custom "all-in-one" web application, we provide the strategic and technical leadership your project requires.
visit: https://opensourcesolutions.pro/All-in-one-Web-Application---Tiki-Wiki .

No. While Tiki Wiki is our historical specialty for high-complexity projects, we master and integrate a wide range of Open Source products, including WordPress for more standard requirements. Our approach is based on finding the most relevant technological fit for your project: we select the tool that best serves your goals rather than imposing a single solution.
Absolutely. We take a Full Stack approach: we don’t just audit the CMS (Tiki, WordPress, etc.); we analyze your entire infrastructure. This includes server configuration, network security, database optimization, and the reliability of your traffic analytics. This comprehensive assessment allows us to stabilize your environment, fix security vulnerabilities, and ensure a healthy platform that is ready for future growth.
Absolutely. We ensure the long-term success of your platforms through tailored maintenance plans (weekly, bi-weekly, or monthly). For total transparency, we provide a dedicated client dashboard where you can track updated documentation, task progress, and operational history in real-time. This rigorous follow-up, combined with customized training, ensures you have full control over your ecosystem.
For us, this means applying the highest standards—security, redundancy, monitoring—even to medium-sized organizations. We don’t just "make a site work"; we build resilient infrastructures with automated backups, hardened firewalls, and proactive risk management.
Security is embedded in every layer of our Full Stack approach. We perform regular audits, apply security patches as soon as they are released, and use intrusion detection tools. Our expertise in the Cyber Resilience Act (CRA) allows us to anticipate future European standards for your digital assets.
The web evolves every day. A weekly plan is ideal for critical platforms requiring constant monitoring, while a monthly plan ensures baseline stability. Every plan includes updates, log reviews, and intervention reports to prevent downtime.
Absolutely. Transparency is one of our core values. Every client is provided with access to our Customer Hub (Dedicated Dashboard). This platform centralizes your project's entire lifecycle: you can track task progress in real-time, view the detailed history of our technical interventions, access your customized documentation, and manage your maintenance plans. This ensures you maintain full visibility and total control over your infrastructure management.

Let's talk about your infrastructure

We're here to help! If you have any questions or would like to discuss
how our expertise on Open Source services and online solutions can benefit your business.

Contact Info

Our Location

126 rue d'Alésia
75014 Paris - France

Phone Number

+33 (0)749847750

Email Address

me@bsfez.com

Get In Touch

216.73.216.38