Technology that takes responsibility.
Refurbished Linux notebooks and GDPR-compliant cloud hosting. We combine enterprise quality with sustainability – for private and business customers worldwide.
Two Worlds. One Promise.
From sustainably refurbished Linux notebooks to fully managed cloud hosting – all at enterprise level, all GDPR-compliant.
Linux Notebooks
Secure & Private
Open-source Linux with complete control over your data. No hidden trackers, no data collection.
Ready to Use Immediately
Fully configured and tested. Unbox and start working right away.
Sustainable & Powerful
Refurbished hardware brought to modern standards. Extended lifespan, less electronic waste.
Intuitive & Familiar
Zorin OS and Ubuntu for smooth transitions. Familiar, simple, productive.
Vast App Selection
Millions of free and professional applications from the Software Center.
1 Year Warranty + Support
Full protection and personal support for your new computer.
Cloud Hosting & Services
Lumi Setup
- Hetzner Cloud Account
- Coolify Setup
- 3 Apps Configured
- Root Access
- Fully Documented
Lumi Care Pro
- Prometheus & Grafana
- Wazuh Security
- Manually Verified Updates
- SLA Guarantee
- 24/7 Support
- Automatic Backups
Lumi Starter
- Server Fully Managed
- Auto-Updates
- Snapshots & Backups
- Uptime Monitoring
- Email Support
- Documentation
Less Complexity. More Control.
Perfection is achieved not when there is nothing more to add – but when there is nothing left to take away. Three principles guide our work.
Freedom Through Transparency
Open-source code you can audit. No hidden data collection, no tracking services, no vendor lock-in. Your data belongs to you – without compromise.
Simplicity as Strength
Every feature earns its place. Linux systems deliver exactly what you need – no bloatware, no forced updates, no background processes slowing down your work.
Sustainability as Commitment
Refurbished hardware instead of new production. Free software instead of annual licenses. Extended lifespan instead of planned obsolescence. Technology that takes responsibility.
Technology with Heart.
Every company has a story. Ours begins with two cats who were looking for a home – and found one.
Lumi came to us 3 years ago and we adopted Kiko in February 2026. They are not just our companions – they are the reason why we 20% of our profits donate directly to cat rescue. To shelters, rescue stations, life-saving operations and good food.
Named after our cats Lumi & Kiko – this company is their story.
Refurbished Hardware
Instead of new production, we rely on high-quality, tested used devices. Good for the environment, good for your budget.
Green Energy
100% Hetzner Green Energy for our entire cloud infrastructure. Your hosting runs carbon-neutral.
Cat Protection
20% of our profits go directly to animal shelters and rescue organizations. Every purchase helps.
Open Source
Full software transparency and active community contribution. We believe in open technology.
Our Technology Partners
Leading open-source projects and hosting partners we rely on.
Windows 11 vs. Zorin OS
The key differences at a glance – so you understand in 2 seconds why switching is worth it.
From Windows to Zorin OS
Your complete guide to switching – explained step by step. Installation, setup, the best apps, tips & tricks.
Latest from the Lumi World
Tips, insights and news about Linux, cloud and sustainable IT.
ALEM – Application Lifecycle & Engineering Model
In my 30+ year career in IT – across different companies, different countries and different positions – I have…
January 2026: 240 Euro for a Better World
How technology saves lives – our first donation month in 2026. The beginning of a movement. At Lumi-Systems.io, we believe in three…
Remote Monitoring Management for Linux with Level.io: Real-world Experience from Lumi-Systems.io
Professional Remote Monitoring Management for Linux systems: How Level.io RMM manages, automates and secures devices at Lumi-Systems.io – GDPR & NIS2-compliant….
Help Shape Our Future
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Ready for the Smart Switch?
Start today – with sustainable technology that takes responsibility.
Sustainable IT solutions from Vienna. Refurbished Linux notebooks and managed cloud hosting – with a heart for cats and the environment.