Over the years I have worked with most leading open source technologies, a selection of which you’ll find below. While I don’t claim expertise in every listed technology, my broad technical knowledge and hands-on experience enable me to quickly master the skills needed to support both existing and new projects.
From this extensive toolkit, I’ve carefully selected the best tools and applications that serve as building blocks for reliable, highly available IT environments. Recently, I made the strategic decision to switch from Ubuntu Server (LTS) to Debian as my default operating system. This choice was influenced by Ubuntu’s controversial push toward their Snap package manager and Canonical’s decision to separate LXD from the Linux Containers project. Debian’s proven track record of reliability and security, while maintaining its innovative and versatile nature, made it the natural choice. Similarly, I’ve transitioned from LXD to Incus (a fork maintained by the original LXD developers, including Stéphane Graber, the former technical lead for LXD at Canonical) as my preferred platform. Combined with ZFS storage, this setup provides a powerful foundation for truly cloud-agnostic infrastructure, offering seamless migration capabilities and robust data protection through ZFS snapshots and replication.
My recent focus has been on providing expertise for self-hosted and web-based business applications. This approach gives organizations access to cutting-edge technologies at minimal cost while maintaining full control over their data and access management. The self-hosted Open Source ecosystem is vast and growing daily. I regularly work with and support popular applications like Nextcloud, OnlyOffice, Collabora, RocketChat, Mautic, Matomo, SuiteCRM, Dolibarr, WordPress, and Woocommerce—tools I extensively use myself.
Since these applications are often mission-critical for business operations, even minor disruptions can threaten organizational continuity. That’s why I strongly advocate consulting experienced professionals when designing, building, securing, and maintaining cloud-agnostic infrastructure. Equally crucial is implementing a robust backup and recovery plan that undergoes regular review and thorough testing—ensuring that potential disasters don’t become fatal to your business.
Operating Systems
Web
Caching
Databases
DevOps
Networking & Security
File Systems & storage
Self-hosted business apps
Miscelaneous
Logging & monitoring
Coding & scripting
Cloud Providers
