Written by Philipp on 2026-10-28
OSS Release: More Than Just Uploading Code
Build . CLI . Gitlab . Projects . Security . Tech . ToolingMaking an internal tool public takes two minutes: set repository to public, add a README, done. The bill comes later — as an issue without reproduction steps, as a pull request against a renamed branch, as an email from a legal department asking whether the license permits commercial use. There’s no good answer if nobody
Written by Philipp on 2026-10-14
When Processes Bring Teams to a Standstill
Projects . Tech . ToolingThe concept is set, the architecture is clear, the code itself is unproblematic. It is therefore almost only about implementation. In earlier projects that would have been done in a few days. Programming, build, connecting the services, deploying to various environments — the team did it themselves. If something went wrong in a sandbox, they
Written by Philipp on 2026-07-22
Tailscale VPN: Connect Your Own Services on Your Own Infrastructure
AI . Network . Personal . Security . ToolingProxmox in the data center, a laptop in the home office, a Raspberry Pi at the edge of a field, and a DGX Spark for inference: your own hardware is rarely in one place. NAT, firewalls, and dynamic IPs separate the devices. Manual WireGuard means: exchanging keys, maintaining IPs, updating firewall rules. Tailscale builds on
Written by Philipp on 2026-04-18
Running gokrazy on a Banana Pi BPI-R1
CLI . Go . Hacking . TestingMotivation I had a BPI-R1 sitting in a drawer. The board is from 2014 — only ancient OpenWrt and outdated Armbian images exist for it. Nobody maintains this platform anymore. The hardware is fine though: dual-core Allwinner A20, 1GB RAM, SATA, and a BCM53125 5-port Gigabit switch on the board. Not bad for a dedicated
Written by Philipp on 2023-11-20
Fixing Issues after upgrading Proxmox 7 to 8
CLI . Network . ProxmoxMy initial plan was to update all of my Proxmox nodes to the latest version by the end of this year. While most updates proceeded smoothly, I encountered two errors on one particular node. Given that updating servers is a critical operation, especially when they are only remotely accessible via the network, I decided to
Written by Philipp on 2023-02-13
Fixing Error “failed, reason: getaddrinfo EAI_AGAIN” in Gitlab Builds
Build . Gitlab . TechSome days ago, I detected some new errors in one of our builds pipelines. The interesting part is, that there were no changes done, that might have caused this error.One example for this error was an DNS resolution error using npm: After some digging, I found out, that the only update might have come with
Written by Philipp on 2023-01-07
Create CSV Reports from GIT Repositories containing your commits
ToolingSome months ago, I got the need to run over several GIT Repositories and collect the work I did on each day. The play was to gather all the data and collect them in different CSV files.Since I wasn’t able to find a ready script for this task, I guess it is a good candidate
Written by Philipp on 2023-01-05
Teaching Mailcow how to deal with Ham/Spam
ToolingThe good must be put in the dish, the bad you may eat if you wish. Cinderella Mailcow is a groupware solutions, that is mainly used for email messaging. With Mailcow, you can setup your own Docker-based Mail-Server + Addons. Mailcow uses rspamd to filter out Spam Messages.However, after some time, there is a need to fine-tune the Spam
Written by Philipp on 2023-01-03
Using the MacOS airport utility
ToolingUsing the MacOS airport utility. Sometimes you need to gather information abouth your current WiFi Connection of you Mac via CLI only (maybe you just have a remote SSH Connection to do so). With the airport tool, there is a handy utility to perform most of the tasks, that you would normally do via the UI. You
Written by Philipp on 2020-06-08
Securely Connected Remote Work
AI . Network . Personal . Security . ToolingConnecting Distributed Nodes with a Nebula VPN Remote work has become the norm in the current situation. In a digital working environment, this should actually offer optimal possibilities. But one thing can become a problem: essential systems required for the daily workflow often cannot be used in a remote-work context. Not every company has set