Infrastructure · Security · Automation · Open Source
I work across infrastructure, networking, security, observability and automation. I enjoy reducing operational complexity, building reliable platforms and turning repetitive work into clear, auditable processes.
My public projects are built around privacy, secure defaults, transparent behavior and maintainable dependency surfaces. I document the boundaries as carefully as the features.
An asymmetric cooperative browser mystery for two to six players. Everyone connects to the same station, but each role receives different evidence.
TypeScript · React · Fastify · WebSocket · MIT
Repository · Roadmap · Architecture · Security
A native Windows gateway between ZVT 13.13 point-of-sale systems and SumUp Solo, Reader and terminal APIs. It provides TCP and serial transport, explicit safety boundaries and locally protected credentials for real payment workflows.
C# · .NET 10 · WinForms · Windows Service · MIT
Repository · Latest release · Security
A native Windows client for Minecraft Java chat and reliable AFK sessions, without a game renderer, telemetry or a separate Java or .NET installation.
C# · .NET 10 · WinForms · Minecraft Java · MIT
Repository · Latest release · Security
observe → understand → simplify → automate → document
- Secure defaults over hidden assumptions
- Root causes over temporary workarounds
- Infrastructure as Code over undocumented clicks
- Useful monitoring over noisy dashboards
- Privacy-conscious software over background telemetry
If my work is useful to you, you can voluntarily support the continued development of software, tools and documentation as well as the infrastructure required for that work.
Support does not create an entitlement to a service, feature, release date or other consideration. It is not a tax-deductible donation, and no donation receipt is issued.
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Please verify the asset, network and complete receiving address in your wallet before sending. Cryptocurrency transactions are generally irreversible; use a small test amount if you are unsure.
Security reports may be sent to security@oexyz.de. Confidential reports can be encrypted with the OeXYZ Security OpenPGP public key.
Primary OpenPGP fingerprint:
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Once oexyz.de is online, compare this fingerprint with the imprint and security policy published there.
OeXYZ · Germany · Website launching soon at oexyz.de