Insider blog

From 28th June 2025, Germany's Accessibility Empowerment Act (BFSG) comes into effect. For the first time, this law obliges private companies to offer specific digital products and services in an accessible format. For many operators of websites, online shops and apps, this means that they must optimize their digital offers for accessibility by the deadline.

Web applications are mostly developed and tested in a dev environment - however the true endurance test comes from practical scenarios on the prod systems.

We have released a wrapper that converts Amazon MWS to SP API, offering developers with outdated systems a simple solution. This open-source project provides a practical alternative to redevelopment and supports the continuation of existing applications.

How to resolve selected domains over VPN on linux. In today's world, more people than ever use VPN services to work from remote. However, in some cases it's not desirable to route all traffic and all domain name resolutions over the VPN connection.

How to tune the integrated SW5 mechanism to work more then 22 times faster! Shopware 5 - parallel thumbnail generation after moving a Shopware 5 system to another server. We had a customer with 400k images and 1600k thumbnails that needed to move from an old HDD based server to a new SSD …

Most of the best BTRFS features are powered by the copy-on-write technology. If an application wants to rewrite a part of a file, like the first MB, the Data is not written in-place but in an so-called extend. This enables BTRFS to keep multiple versions of partially rewritten files with only claiming ...

Most Sysadmins know how to setup a basic chroot on a mounted filesystem (mount-binding dev, proc and sys) but this does not work in any case; for a complete chroot setup you would aso need dev/pts dev/shm, run, tmp, a working resolve.conf and more. After you have set it up, and you want to bring it ...

When it comes to buying an NVME SSD for a software developer workstation, you have a choice: buy a cheap one or an expensive one. So far I've gone for the more expensive ones because they promised better performance and longer life - now I see how wrong I was...

Comment and investigation in RAID performance RAID 5 vs RAID10 has been discussed for ages; it's common knowledge that RAID10 offers better performance – but how much depends on the actual implementation, hardware and use-case. I just got a server with 4 x 16TB …

When attempting to reclaim disk space, deleting data may seem like the obvious first step. However, in Riak this is not necessarily the best thing to do if the disk is nearly full...

next-gen backup with BTRFS snapshots for root-fs and databases linux. What it is good for. This article is about using BTRFS snapshots as backup solution, usable for databases and full root partition backups. This is not a detailed step-by-step guide and requires some linux skills. This post aims to share my experiences and save …

As the Basho RIAK KV TS CS documentation is unreachable at the moment, we have created a mirror ...

For developers, for store operators - We don't work with arbitrary frameworks, libraries, plugins and programming languages. We love it professionally. Software created at Helm & Walter should be powerful and lean. Here are our favorites: PHP (recursive acronym for PHP: hypertext preprocessor) is a widely used programming language for ...