Tobias Schäfer's Blog

Zammad is widely used for ticketing and case management, including in public services.

If you organise your music with beets you already have a well-tagged, neatly structured library on disk.

Finch began with a very pragmatic problem: debugging without logs is painful, and turning on the right logs is often impossible once you depend on third-party systems or a production environment you can’t easily change.

Modern software development thrives on collaboration, and issues are its fundamental communication unit.

When it comes to software development, having clear insights into your code’s test coverage is invaluable.

Suspicious outbound connections can indicate malware activity, data exfiltration, or unauthorized access attempts.

When I’m investigating weird connection patterns - unexplained SYN floods, flaky peer connections, or a service that suddenly stops answering - the kernel already knows a lot about what’s happening. conntrack holds the live state for every tracked connect…

When I started Finch, my primary pain point was simple: debugging without logs is like flying blind.

One of the recurring challenges I face as a software engineer is debugging issues with little to no logs.

If you’re running an encrypted ZFS root filesystem on Debian and want to enhance boot-time security with hardware-backed two-factor authentication, the yubikey-zfs-initramfs extension is a robust solution.

The Raspberry Pi is equipped with a VideoCore (VC) GPU, a low-power mobile-multimedia processor, which can encode and decode a series of multimedia codes.

Retrieval-augmented generation (RAG) is a technique that enables large language models (LLMs) to retrieve and incorporate new information.

In today’s digital age, the intersection of artificial intelligence (AI) and privacy is a critical concern.

I learned my first lessons from K3s and inlets-pro on my Raspberry Pi 5 devices.

Recently, I created a K3s cluster on three Raspberry Pi 5 devices and started using inlets-pro for tunneling private services to the public.

This is the first post on my new hugo blog which is being hosted on my Hetzner dedicated server.