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Blog Messenger OpenSource Security Server

2025-06-11: Replace Microsoft Teams with Matrix & Element

In a time when data protection, digital sovereignty, and cost control are more important than ever, many companies are looking for a real alternative to Microsoft Teams. As an IT service provider, I offer exactly that: a powerful, modern communication solution – based on the Matrix protocol and the open-source Element interface.

🧩 What is Element – and what is Matrix?
  • Element X / Element Web is the front-end interface for messaging, file sharing, and video conferencing – available on laptops, smartphones, and tablets.
  • Matrix Synapse is the backend – it runs on your own server and handles secure, decentralized communication.
πŸ›‘οΈ Full control over your data – no dependency on Microsoft

With my solution, every company runs its own communication server in a German data center. This ensures that every message, file, and call stays in-house – without being routed through U.S.-based platforms or global cloud infrastructures.

πŸ” No data transfer to the USA
🚫 No Microsoft accounts or licenses required
πŸ‡©πŸ‡ͺ Server location: Germany – fully GDPR compliant
βœ… 100% independence from U.S. corporations

Everything modern teams need
  • πŸ’¬ One-on-one and group messaging
  • πŸ“Ž Secure file sharing
  • πŸ“ž Voice and video calls
  • πŸ“± Cross-platform usage (laptop, phone, tablet)
  • πŸ—‚οΈ Structured rooms for teams and projects
πŸ’Ό Trusted by military and governments

Matrix and Element are already in use by various military and public-sector organizations: The U.S. Navy uses Matrix on multiple ships for secure internal communication. The German Bundeswehr operates its own Matrix-based messenger (BwMessenger). Governments in France, Luxembourg, Sweden, and the German healthcare sector also rely on Matrix for secure, sovereign communication.

This is all provided on a secure, open-source foundation – flexible, transparent, and future-ready.

πŸ’Έ Clear savings – year after year

Compared to Microsoft Teams, a company with 20 employees can save up to $1000 per year – while keeping full control over all internal communication and data.

πŸ› οΈ My offer to you
  • Setup and operation of your own Matrix instance
  • Deployment of Element Web / Element X as the user interface
  • Ongoing maintenance, security updates, and technical support
  • GDPR-compliant configuration
  • Optional: onboarding and training for your team
βœ… Conclusion

With Matrix and Element, you gain a professional, secure, and cost-effective communication platform – without Microsoft, without data leakage, and without vendor lock-in.

πŸ‘‰ I’m happy to provide a custom quote tailored to your company size and needs.
Independent. Secure. Future-proof. – Your new communication solution.

Categories
Blog Anonymity Bitcoin Future Messenger OpenSource Security

2025-05-26: Open Source Software: Digital Freedom

Open source software is no longer a niche topic – it forms the backbone of our digital world. Many people are unaware of this, but the majority of computers around the globe already rely on open source technologies. In particular, the internet runs heavily on open source: most web servers operate using the Linux operating system, and countless services and applications – from web browsers to content management systems – are built on open source foundations.

πŸ” What Does Open Source Mean?

Open source means that a software’s source code is publicly accessible, modifiable, and free to use. This transparency not only fosters trust but also enables global, collaborative development. Control does not rest with a single company or state – it lies with the community. This prevents users from being locked into expensive subscription models or becoming dependent on individual vendors – a scenario that’s increasingly common with proprietary software.

This issue is strikingly portrayed in the latest season of the series Black Mirror (Season 7, Episode 1): A woman receives a medical chip implant after having a brain tumor removed. The twist? The chip is permanently connected to the provider’s cloud – all data and functionality are processed externally, with nothing stored locally. Without an active subscription, the chip stops working. The software operates on a tiered licensing model with steadily rising costs. Eventually, the woman’s family can no longer afford the increasingly expensive subscription levels – leading to catastrophic consequences.

This dystopian scenario highlights how dangerous it can be when essential technologies are fully controlled by a central provider. It creates a total dependency – both technically and financially. Open source offers a radical alternative: transparent, decentralized, user-controlled, and free.

🧩 Freedom Through Technology

Open source is an expression of digital self-determination. Those who use free software decide for themselves what runs on their devices, what data is shared, and which functions are enabled. This independence is more than just a technical detail – it’s a political statement in an age of digital surveillance, data exploitation, and monopolization.

A particularly powerful example of open source as a vehicle for independence is Bitcoin. Here too, the entire source code is publicly available, every transaction is verifiable, and the system itself is not centrally controlled. The idea of freedom, transparency, and decentralization is central – and would not be possible without open source.

πŸ” Security Through Encryption

In an age of widespread digital surveillance, protecting private communication is essential. Open source plays a crucial role here: only with publicly accessible source code can users verify whether a tool is truly secure. Encryption tools such as PGP for email or decentralized messengers like Matrix (with clients like Element) are vital for maintaining privacy and shielding digital conversations from prying eyes.

🀝 A Call to Support Open Source

The benefits of open source are overwhelming: transparency, security, independence, and innovation. But none of this happens automatically. The development and maintenance of free software is often done voluntarily or underfunded. That’s why it’s essential that we not only use open source but actively support it – by contributing to development, reporting bugs, or donating to projects that benefit us all.

Here is a short list of the most famous open source programs:

1. LibreOffice
Free and powerful office suite – alternative to Microsoft Office
πŸ”— https://www.libreoffice.org/

2. GIMP
Free image editor – comparable to Adobe Photoshop
πŸ”— https://www.gimp.org/

3. Mozilla Firefox
Secure and fast open-source web browser
πŸ”— https://www.mozilla.org/firefox/

4. Thunderbird
Email client with calendar and chat support
πŸ”— https://www.thunderbird.net/

5. VLC Media Player
Versatile media player that supports nearly all formats
πŸ”— https://www.videolan.org/vlc/

6. Audacity
Audio recording and editing software
πŸ”— https://www.audacityteam.org/

7. Krita
Professional painting and illustration tool for artists
πŸ”— https://krita.org/

8. Inkscape
Vector graphics editor – similar to Adobe Illustrator
πŸ”— https://inkscape.org/

9. KeePassXC
Secure and cross-platform password manager
πŸ”— https://keepassxc.org/

10. Shotcut
Free, open-source video editor with wide format support
πŸ”— https://shotcut.org/

βœ… Conclusion

In the digital age, open source is not a luxury – it’s a necessity. There is hardly a more powerful tool for freedom, self-determination, and privacy protection. Those who want a free society must also support free software. It’s up to all of us to promote open source – for a digital world that liberates, not controls.

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Blog Messenger Server

2025-05-20: Matrix + Video Calls – Exploring ElementCall & ElementX

Over the past few weeks, I’ve been diving into ElementCall and ElementX – two exciting projects in the Matrix ecosystem that push decentralized communication even further.

πŸ”Ή ElementCall enables secure, peer-to-peer video calls using the Matrix protocol – built on top of LiveKit.
πŸ”Ή ElementX is a next-generation Matrix client – fast, lightweight, and built with modern architecture.

πŸ“š New Tutorial Available!
I’ve written a step-by-step tutorial on how to integrate ElementCall (with LiveKit and JWT authentication) as an addon to an existing Matrix Synapse installation running in Docker.

πŸ’‘ This makes it easy to upgrade your Matrix setup with full-featured video calling – fully self-hosted and privacy-respecting.

πŸ‘‰ Check out the tutorial here:
πŸ”— https://it-service-commander.de/en/tutorials-2/docker/elementcall-as-add-on-for-matrix-synapse-docker/

Feel free to reach out if you’re experimenting with Matrix or looking to add video calling to your infrastructure!

#Matrix #ElementCall #ElementX #SelfHosting #VideoCalling #Synapse #LiveKit

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Blog Messenger

2025-03-29: Matrix Synapse and Element X

Secure corporate communication with open source technology

Matrix Synapse is a powerful open source server for the Matrix protocol that enables secure, decentralized and scalable real-time communication. Companies that value data protection, data sovereignty and interoperability can use it to create a powerful alternative to proprietary solutions such as Microsoft Teams, Slack or WhatsApp.

A major advantage of Matrix Synapse is that it can be used completely free of charge. As it is open source software, there are no license fees. Companies can operate the server on their own infrastructure or host it in the cloud without being tied to a specific provider.

In combination with Element X, a modern, fast and user-friendly matrix client, companies receive a secure messaging platform that can be used for both internal communication and for exchanges with external partners. Thanks to end-to-end encryption, all messages and calls are optimally protected. In addition, rooms and group chats can be managed flexibly so that different teams can work together efficiently.

My services as an IT service provider

As an IT service provider, I support companies in the planning, implementation and maintenance of their Matrix and Element-X infrastructure. My services include

  • Consulting and design: Analysis of requirements and creation of a customized solution
  • Installation and configuration: Setting up Matrix Synapse on dedicated servers or in the cloud
  • Support: Introduction to the use of Element X and ongoing technical support
  • Security and maintenance: Regular updates, monitoring and protection against security risks

With my support, companies can make a smooth transition to a data protection-friendly communication platform that gives them maximum control over their own data.

https://github.com/element-hq/synapse