Categories
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 OpenSource Server Uptime

2025-06-08: Easy Server Monitoring: Why Uptime Kuma and NTFY Matter for Your Business

In today’s highly digital business environment, the availability of your IT systems is a critical success factor. Whether it’s an online store, customer portal, or internal tool – system outages can lead not only to lost revenue, but also to damaged customer trust.

Reliable monitoring of your servers and services is therefore essential. Two tools that have proven particularly effective are Uptime Kuma and NTFY. Combined, they provide a simple and powerful solution to detect disruptions early – and respond immediately. ⚑

❗ Why Is This So Important for Businesses?

Outages happen. Whether due to maintenance, technical failure, or network issues – reaction time is key. If you’re notified the moment a service goes offline, you can step in quickly and minimize downtime. ⏱️

Small and medium-sized businesses in particular benefit from not having to wait for customer complaints. Instead, you stay proactive and in control. This improves service quality, saves valuable time, and protects your reputation. βœ…

πŸ”§ What Do Uptime Kuma and NTFY Actually Do?
  • 🧭 Uptime Kuma continuously monitors your web servers, databases, and other services. It instantly detects if something is no longer working.
  • πŸ“² NTFY sends push notifications to your smartphone or desktop the moment an issue is detected – without the complexity of email servers or SMS gateways.

This keeps your team informed – even outside of working hours. πŸŒ™

🌟 Key Benefits at a Glance
  • 🚨 Early Detection of Outages
    No more surprises: you’ll know the moment something goes wrong.
  • βš™οΈ Quick Response Time
    Push notifications help you act fast – when every minute counts.
  • 🧩 Simple Integration
    Both tools can be installed on a virtual server with minimal setup.
  • πŸ’° Cost-Effective
    Both are open-source – no license fees or subscriptions required.
βœ… Conclusion

Together, Uptime Kuma and NTFY offer a lightweight and highly effective way to monitor your IT infrastructure. They boost your ability to respond quickly to issues, enhance your customer service, and give you peace of mind – knowing your systems are being watched. πŸ›‘οΈ

Especially for businesses without large IT departments, this solution is ideal: flexible, low-maintenance, and easy to expand.

πŸ’¬ If you’d like help setting it up or want a custom monitoring solution tailored to your needs, I’m happy to assist.

Categories
Blog OpenSource Security Server

2025-06-01: RustDesk: The Free Alternative to TeamViewer & AnyDesk

Remote access software is an essential tool in modern ITβ€”whether for technical support, remote work, or quick computer assistance. While commercial solutions like TeamViewer and AnyDesk are well-known, today I would like to introduce you to a more privacy-conscious and cost-free alternative: RustDesk.

πŸ› οΈ What Is RustDesk?

RustDesk is an open-source remote desktop software that offers high performance, ease of use, and full control over data traffic. It is cross-platformβ€”available for Windows, macOS, Linux, Android, and iOSβ€”and especially well-suited for data-sensitive environments.

πŸ” Your Data – Your Choice: Advantages Over TeamViewer & AnyDesk

πŸ“‘ 1. Host Your Own Server for Full Data Sovereignty

Unlike commercial providers, RustDesk allows you to host your own infrastructure. This means all connection traffic stays under your controlβ€”without being routed through external servers.

πŸ’Έ 2. No Hidden Licensing Costs

RustDesk is completely free to useβ€”even for commercial purposes. There are no limitations on the number of devices, connections, or support hours. You reduce IT costs without sacrificing features.

πŸš€ 3. Fast Setup and Modern Technology

The software is written in the programming language Rust, known for its performance and safety. Installation is simple, resource usage is minimal, and connection speeds are excellent.

πŸ” 4. Open Source Creates Trust

Unlike proprietary systems like TeamViewer or AnyDesk, RustDesk offers full transparency with open-source code. Security risks or privacy concerns can be audited publiclyβ€”a decisive advantage for businesses, government organizations, and privacy-conscious individuals.

πŸ§‘β€πŸ’» My Service: Secure IT Support with RustDesk

As an IT service provider, I support individuals and businesses with a tailored, privacy-compliant remote support solution based on RustDesk. By using a dedicated server infrastructure, I can provide you with secure connections that meet the highest privacy and compliance standardsβ€”without any data being routed through third parties.

πŸ“˜ Want to Host It Yourself? No Problem – Here’s My Tutorial

If you want to set up your own RustDesk server, I’ve created a detailed, step-by-step tutorial to walk you through the process:
πŸ‘‰ Set Up RustDesk on a Linux Server Using Docker-Compose
In this guide, I explain how to run your own self-hosted remote desktop solution quickly and reliably.

🌍 Why Open Source Matters More Than Ever

In an age where digital sovereignty and data protection are constantly under threat, free and open-source software like RustDesk provides a real alternative. You decide how and where your data is processedβ€”without dependence on external vendors or restrictive licensing models.

βœ… Conclusion: RustDesk Offers You Security, Freedom, and Control

RustDesk combines security, flexibility, and cost-efficiency in a modern remote access solution. As free software, it gives you back controlβ€”over your infrastructure, your data, and your IT operations.

πŸ“ž Do you have questions or need expert support?
I’m happy to help you implement a secure and customized solutionβ€”without compromise.

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.

Categories
Blog Artificial Intelligence Future

2025-05-24: How Artificial Intelligence Is Changing the World of Work

🧠 Report: Who Will Be Above or Below AI in the Future?

The world of work is undergoing a profound transformation, largely driven by the rapid development of Artificial Intelligence (AI). One central question is becoming increasingly important: Who will be above AI in the future – and who will be below it?

πŸ“‰ The Office Sector in Decline – Administrative Roles Under Pressure

AI systems are already capable of performing simple administrative and routine tasks more efficiently, quickly, and cost-effectively than humans. Initial areas affected include data entry, appointment scheduling, invoice verification, and drafting standardized correspondence. But the trend goes further: More complex tasks such as legal reviews, accounting, and even strategic analysis are increasingly falling within the capabilities of intelligent algorithms.

This development means that office jobs – even those at higher levels – are being gradually replaced or significantly reshaped. What begins with simple tasks will, over time, impact even qualified knowledge-based roles. Companies face the challenge of retraining employees or fundamentally restructuring their organizations.

πŸ›’ Retail in Transition – Automation Displacing Jobs

The impact of automation is also clearly visible in the retail sector. Simple tasks like cashier work – typically performed by checkout staff – are increasingly being replaced by self-checkout systems. Many supermarkets today already require far fewer employees at the checkout.

As a result, customers now perform the payment process themselves, and the remaining staff focus primarily on stocking shelves – a task that is simpler, physically more demanding, and typically lower paid. This trend not only raises questions of fair labor conditions but also underscores the growing need for reskilling and new career paths.

πŸ”§ Skilled Trades and πŸ’» IT – The Winners of This Transformation

In contrast, there are professions that are largely resistant to AI-driven automation – most notably skilled trades. Whether carpenter, electrician, painter, or plumber: These jobs require physical presence, craftsmanship, and situational judgment – qualities that machines cannot match anytime soon.

At the same time, IT professions are becoming more valuable than ever. Today’s software developers, system administrators, and digital process designers are in high demand. These roles require not only technical skills but also creativity and problem-solving abilities – things AI alone cannot replicate.

🌍 Germany – A Digital Latecomer

A critical look at Germany reveals that it has fallen behind in IT development over the past 25 years. While Silicon Valley leads the global AI revolution, Germany has invested too little in building its own digital infrastructure and technology ecosystem. Europe as a whole has little independence in this sector.

This is clearly reflected in the MSCI World Index, where the dominant companies are almost exclusively from the USA – Amazon, Apple, Microsoft, Google, Meta. European tech companies barely register. This poses not only economic but also geopolitical risks – and highlights the urgency for action.

πŸ‘¨β€πŸ”§πŸ‘©β€πŸ’» Advice for the Next Generation: Choose Skilled Trades or IT

Given these developments, my clear recommendation to young people – and to parents helping their children choose a career – is: Consider a career in the skilled trades or in IT. Both sectors are future-proof, offer strong career development, and in the best-case scenario, can lead to self-employment. Whether as an IT specialist or as a master craftsman with your own business: These fields offer real opportunities in a world increasingly shaped by AI.

πŸ€– Useful AI Tools for Everyday Work

The practical use of AI is not limited to large corporations. It’s already accessible to small and medium-sized businesses and offers tangible benefits in terms of efficiency and productivity. Here are some current tools that can support everyday work:

  • ChatGPT / GPT-4 – for content creation, brainstorming, virtual assistance, and customer communication
  • Grammarly – for grammar, spelling, and style checking in multiple languages
  • Midjourney / DALLΒ·E – to generate images for marketing, presentations, or visual concepts
  • Notion AI – to organize projects, ideas, and summaries intelligently
  • DeepL Write – for high-quality translations and stylistic improvements
  • Runway / Descript – for automated video editing and podcast production
  • Pictory – creates short social media videos from blog posts or written content
  • Microsoft Copilot / Google Duet AI – AI features directly integrated into Office tools like Word, Excel, and Gmail

These tools are already powerful – and improving rapidly. They offer real competitive advantages for businesses willing to embrace innovation.

🀝 My Offer: Guiding You into the Digital Future

I support businesses in becoming future-ready – by developing digital strategies and introducing AI applications into day-to-day operations. From process analysis to tool selection and employee training, I offer hands-on, practical guidance through the transformation.

Because the right response to the rise of AI isn’t fear – but proactive innovation.

If you’re looking for support in your company’s digital transformation or would like to know which AI tools are best suited to your specific business model, feel free to reach out.

Categories
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

Categories
Anonymity Blog Security

2025-05-17: Anonymous. Secure. Free: TOR Network

Why you should not only use the network, but also support it:

The internet should be a place of freedom β€” a space where you can inform yourself, communicate, and express your opinion without being constantly watched or controlled. Unfortunately, the reality looks quite different: surveillance, data collection, censorship. That’s where TOR comes in β€” the β€œThe Onion Router” network. And no, it’s not just for hackers or whistleblowers. TOR is for anyone who wants to protect their privacy online.

πŸ” TOR Is Not a Hiding Place for Criminals β€” It’s a Shield for Citizens

TOR often has a bad reputation because it’s associated with the so-called β€œdark web.” But that image is misleading. TOR was not created for illegal purposes β€” it was developed as a tool for ordinary citizens who want to keep their online activity private.

Whether you want to browse anonymously, avoid being tracked by advertisers, or bypass censorship in authoritarian regimes β€” TOR gives you the ability to move through the internet securely and without being watched.

πŸ•΅οΈβ€β™‚οΈ Snowden, Assange, and the Reality of Mass Surveillance

You may remember Edward Snowden, who revealed in 2013 how extensively the NSA and other intelligence agencies are monitoring people around the world. Or Julian Assange, who, through WikiLeaks, published confidential documents exposing war crimes and corruption.

Both men used secure, anonymous communication methods β€” including TOR β€” to protect their sources and themselves. Without such tools, many of these truths would have remained hidden. TOR is not just a piece of software β€” it’s a symbol of transparency, accountability, and freedom of information.

βš™οΈ How You Can Support TOR β€” By Running a Relay

TOR relies on its users to stay strong. Especially important are Middle Relays β€” the servers that forward encrypted traffic through the network. The more of these relays exist, the faster, more stable, and more secure the entire system becomes.

The good news: Running a relay is technically simple, inexpensive, and has a big impact β€” for you and for millions of users around the globe.

I have provided a corresponding tutorial for your own Linux server here for free:

https://it-service-commander.de/en/tutorials-2/docker/install-tor-server-in-a-docker-container-on-your-vps/

🧭 Digital Freedom Is Not a Given

Data retention laws, chat control, constant tracking β€” these are not just buzzwords. They represent real threats to civil liberties. Both governments and corporations are collecting data at a scale that would have seemed impossible just a few years ago.

Privacy is not a luxury β€” it is a fundamental digital right. And now, more than ever, it needs to be defended.

βœ… Conclusion

TOR is not a criminal hiding place, but a protective tool for free speech, journalism, and digital self-determination.

If you use TOR, you protect your own data.
If you actively support TOR, for example by running a relay, you help make the internet a freer and safer place β€” for everyone.

Real freedom begins with digital responsibility β€” and that’s in your hands.

More Information: https://www.torproject.org/

Categories
Blog Security

2025-04-30: Avoid Port Forwarding – Use VPN Instead

🌐 In an increasingly interconnected world, many people want secure access to their home network from anywhere. However, significant security risks exist, especially if you simply open ports on your router. A better alternative is using VPN technologies like WireGuard or OpenVPN.

VPN stands for “Virtual Private Network” and refers to a secure connection that encrypts your internet traffic and routes it through a protected tunnel between your device and the network. This keeps your data safe from prying eyes and ensures that only authorized users gain access.

⚠️ Risks of Port Forwarding

Port forwarding on a router may initially seem like a simple solution for accessing NAS devices, smart home systems, or surveillance cameras remotely. However, each open port creates a potential entry point for cybercriminals:

  • πŸ”“ Open Attack Surface: Every forwarded port can be discovered and attacked from the outside. Hackers and automated scripts actively look for open ports and vulnerabilities.
  • πŸ” Lack of Encryption: Without additional security measures, data traffic usually remains unencrypted, making sensitive information easily readable.
  • πŸ”‘ Weak Authentication: Many devices offer insufficient protection or default passwords that can easily be compromised.

βœ… Benefits of WireGuard and OpenVPN

Instead of directly forwarding ports, you should use VPN solutions like WireGuard or OpenVPN, which offer numerous advantages:

  • πŸ” Enhanced Security Through Encryption: All data traffic is securely encrypted, making it unreadable to unauthorized parties.
  • πŸ›‘οΈ Strong Authentication: Only authorized users can access your network, significantly reducing the risk of unauthorized access.
  • πŸ•΅οΈ Hidden Infrastructure: No directly visible ports from outside, effectively making your devices invisible to automated attacks.

πŸ”— Why Choose WireGuard or OpenVPN?

Both technologies have proven their reliability:

  • πŸš€ WireGuard is lightweight, fast, easy to set up, and offers state-of-the-art cryptography. Ideal for home users looking for straightforward and quick access.
  • βš™οΈ OpenVPN has been established for years, is highly flexible, and widely supported. Perfect for complex requirements and professional environments.

πŸ“Œ Conclusion

If you take your privacy and security seriously, avoid simple port forwarding and instead use proven VPN solutions such as WireGuard or OpenVPN. This ensures your data remains protected and your home network stays safe from attackers.

Categories
Blog Health

2025-04-20: electronic patient record in germany

Source: https://www.bfdi.bund.de/DE/Buerger/Inhalte/GesundheitSoziales/eHealth/elektronischePatientenakte.html

The electronic patient record (ePA) is a digital collection of medical data such as doctor’s reports, X-rays, vaccinations, or medication plans. Insured individuals in Germany can decide for themselves which information is stored and which doctors are allowed to access it. The goal is better, more connected healthcare and greater transparency.

πŸ§‘β€πŸ’» As an IT specialist, I have personally opted out of having a digital patient record (ePA) created for myself.
This article reflects my subjective opinion and is based on my experience in the IT field. While the ePA offers potential benefits, such as improved networking in healthcare, I consider the associated risks and challenges to be too great.

πŸ” 1. Data Protection and Security:
The ePA stores highly sensitive health data. Although recently discovered security vulnerabilities highlighted by the Chaos Computer Club (CCC) have been addressed, it still cannot be ruled out that hackers could gain access again through future security gaps.
Furthermore, the health data is not stored on the insurance card itself but on centralized servers located in Germany. Even though the data is encrypted, it is potentially accessible 24/7, since it is stored permanently online.
This central storage significantly increases the risk of hacker attacks and data leaks.

πŸ–₯️ 2. Integration, Compatibility, and User Acceptance:
Each medical practice must keep its IT systems β€” including operating systems β€” consistently up to date to ensure that they do not become the weakest link in the encryption chain and vulnerable to cyberattacks.
Moreover, the widespread implementation of the ePA requires extensive training for doctors, healthcare staff, and patients. Especially older individuals or those unfamiliar with digital systems often struggle to adapt, leading to frustration and resistance.

πŸ“‚ 3. Limitation of Patient Rights:
The ePA stores patient data centrally. Although this is intended to make access easier, it also means patients lose control over where and how their data is stored and used.
They can no longer decide who has access or keep track of how the data is being utilized. This increases the risk of unauthorized access and reduces transparency for the patient.

πŸ‘οΈ 4. Risk of Digital Surveillance:
There is a concern that health data might be used not only for medical purposes but for other interests as well.
In the future, this information could potentially be used by insurers, employers, or other institutions to monitor patient behavior. This kind of digital surveillance could endanger privacy and erode trust in the healthcare system.

πŸ“Œ Conclusion:
Digitization in healthcare can offer many benefits, but all technical, legal, and security-related questions must be thoroughly resolved. Only then can the trust of both patients and professionals be ensured. Digitization must be implemented in a secure, privacy-compliant, and transparent way in order to protect patients and strengthen confidence in the system.

Everyone should be free to decide for themselves whether they want a digital patient record.
As for me, I have chosen to opt out β€” because the risks regarding data protection, security, and potential digital surveillance outweigh the possible benefits in my view.

Sample objections can be found here:

https://widerspruch-epa.de/
https://widerspruch-epa.de/wp-content/uploads/2025/01/widerspruch_EPA.pdf

Categories
Blog Bitcoin

2025-04-06: Bitcoin Node with Umbrel

Running your own Bitcoin node is a crucial step toward true financial sovereignty. You verify transactions yourself, protect your privacy, and become an active part of the decentralized networkβ€”without relying on third parties. Whether for security, independence, or learning purposes, your own node brings you closer to the heart of Bitcoin.

πŸ” Full Control

You verify transactions yourselfβ€”no reliance on third parties.
No censorship: send and receive Bitcoin directly through your own node.

πŸ›‘οΈ More Privacy

Your wallet communicates only with your nodeβ€”no data leaks.
No need for external block explorers.

⚑ Lightning Integration

Run your own Lightning channels and wallets directly via Umbrel.
Fast, low-cost payments without middlemen.

πŸ“š Learn & Understand

Gain a deeper understanding of Bitcoin and the network.
Perfect for the curious, tech enthusiasts, and developers.

🧩 Apps & Extensions

Umbrel offers a variety of useful apps: Electrum Server, Mempool, Nextcloud, and more.
All easily installable via a simple web interface.

🏠 Easy Start

Intuitive user interface, ideal for Raspberry Pi & more.
Quick setup with regular updates. Alternatively, can be virtualized with Proxmox.

🧰 Hardware Checklist for Your Umbrel Node

πŸ”Ή Raspberry Pi 5
πŸ”Ή 1 TB SSD
πŸ”Ή SSD enclosure or adapter (USB 3.0 to SATA)
πŸ”Ή microSD card (at least 32 GB, e.g., SanDisk Ultra)
πŸ”Ή USB-C power supply (original power adapter recommended)
πŸ”Ή Case for the Pi (with cooling)
πŸ”Ή Ethernet cable (for a stable connection)

Optional:

πŸ”Œ UPS (Uninterruptible Power Supply) – protects against power outages
🌐 Router port forwarding – for a publicly reachable Lightning node or alternatively: via the Tor network

As an IT service provider, I’m happy to offer guidance and support.

https://github.com/getumbrel/umbrel