Building reliable Linux systems, practical automation, and open-source tools.
Based in Switzerland · 15+ years in Linux and systems engineering
I'm a Switzerland-based Senior Linux Systems Engineer with over 15 years of experience in Linux administration, infrastructure operations, troubleshooting, and automation.
My work sits at the intersection of Linux engineering, Python, Bash, Rust, open-source software, and cybersecurity. I enjoy turning complex technical challenges into lean, maintainable systems, from Raspberry Pi distributions to monitoring and developer tooling.
I hold a Swiss Federal Professional Certificate in ICT (Systems and Networks), alongside LPIC-1 and LPIC-2 qualifications. I also teach and mentor people learning Linux and programming, and write technical books.
I, Hamdy Abou El Anein, contribute patches to the Linux kernel's development scripts. These changes focus on preserving diagnostic text, checking Kconfig symbols, and resolving Git references.
| Contribution | Purpose | Documented milestone |
|---|---|---|
| kbuild: detect module name collisions between '-' and '_' | Normalize module basenames before duplicate checks because Kbuild and the module loader treat hyphens and underscores as equivalent. | Applied by Nicolas Schier to kbuild/linux.git, branch kbuild-next-unstable, with a Fixes: tag added. Pending wider testing in linux-next and post-commit review. On 8 November 2026, Sasha Levin reported ARM allmodconfig failures exposing two pre-existing module-name collisions. On 9 November, Nathan Chancellor announced two rename patches. For the apm-power collision, Dmitry Torokhov proposed removing the obsolete input driver. On 10 November, Nicolas Schier confirmed applying that change to kbuild-next-unstable (commit 7f705c0a). |
| decode_stacktrace: preserve input while reading lines | Preserve whitespace, backslashes and a final line without a newline. | Andrew Morton announced its addition to -mm / mm-nonmm-unstable on 3 November 2026, with Sasha Levin's Acked-by. |
| checkkconfigsymbols: check the complete numeric token | Keep names such as 64BIT_MISSING visible to the undefined-symbol check. | Reviewed-by from Nathan Chancellor received on 6 November 2026. |
| git-resolve: check the Git object type, v2 | Verify that an abbreviated object ID identifies a commit before using it in a Fixes reference. | Version 2 submitted on 4 November 2026 following review. |
Updated 11 November 2026. Review approval and inclusion in a maintainer branch are distinct from a mainline merge; no mainline merge is claimed here. AI assistance is disclosed in the patch submissions.
Hamdy Abou El Anein's patches and review discussions on Lore · Contribution details and status in French
| Project | What I build |
|---|---|
| Daylight GNU/Linux · Website | Founder and lead developer of a lightweight Linux experience for Raspberry Pi, with a desktop, packaging, and a browser-based demo. |
| Coreutils in Rust | A Rust-based reimplementation project exploring familiar Unix command-line utilities. |
| Astrometry · Website | An educational astronomy project presenting orbital datasets through a lightweight, accessible website. |
| Software-Coders.ch | My technical training and consulting initiative, focused on Linux, Python, Bash, Go, Rust, and cybersecurity. |
| Linux automation with Ansible | Practical Linux provisioning and automation workflows. |
| Systems & infrastructure | Development & automation | Security & operations |
|---|---|---|
| Linux · Debian · RHEL · Raspberry Pi | Python · Bash · Rust · Go | Hardening · Monitoring · Logging |
| Docker · Systemd · Networking | Git · Ansible · CLI tooling | Troubleshooting · Observability · SIEM |
I care about performance, simplicity, reproducibility, security, and maintainability. Good infrastructure should be understandable, observable, and efficient.
I help learners and professionals build real-world technical skills through hands-on, individual training.
Topics: Linux administration, Python programming, shell scripting, Go, Rust, and cybersecurity.
I'm interested in meaningful conversations about Linux engineering, infrastructure automation, open source, and technical collaboration.
Email: info@daylightlinux.ch Projects: Daylight Linux · Astrometry · Software-Coders