Portfolio & Selected work

Products that do more than
look good.

Selected work that brings concept, design and technical implementation together — from websites to Windows applications.

06selected
projects

Experience spanning three decades

A wealth of experience.
A lot learned.

Over the past three decades, I have worked on countless web and Windows applications. The technologies have kept changing: TYPO3, Symfony, WordPress and Astro on the web, Delphi in the early years and, for around two decades, .NET and C# on Windows. Database systems such as MySQL, SQL Server, PostgreSQL and MariaDB have also been part of that journey.

Those projects were commissioned by clients. Each was successfully delivered and completed, and I thoroughly enjoyed every one of them. They helped me grow professionally, sharpen my judgement about good solutions and develop as a person.

The projects on this page are therefore a small, current selection of my own work rather than a complete retrospective. These are independent products, separate from client work, that I develop today with the same curiosity and enjoyment.

Website relaunches

Strategy, content, design and development from one source.

ruesken.net
The ruesken.net homepage after the relaunch

01 / 02

Product website · Relaunch 2026

ruesken.net

A clear showcase for independent Windows tools: accessible product pages, consistent content and a website that connects visitors with the developer.

The relaunch brings four independent applications together in a shared product system. Benefits, features and local operation are easy to understand — in German, English and French.

  • Concept development
  • UX & Design
  • Astro development
  • Multilingual content
Visit website ↗
christian-ruesken.de
The christian-ruesken.de homepage after the relaunch

02 / 02

Personal website · Relaunch 2026

christian-ruesken.de

Experience, values and work brought together in a personal website: focused, editorial in approach and with room for thoughts, topics and projects.

The website connects career milestones with a personal perspective on software, responsibility and collaboration. A lean editorial system makes it easy to maintain new thoughts and portfolio entries over time.

  • Positioning
  • Content Design
  • Astro development
  • Editorial work
Visit website →

My own software

Four tools.
One standard.

The rsk tools run locally on Windows and solve specific tasks without mandatory subscriptions, user accounts or unnecessary complexity.

New · WindowsThe main rsk.files window with two independent file panes

01

Professional file manager

rsk.files

Brings local folders, networks, archives, remote servers and cloud storage together in a powerful dual-pane file manager.

Two independent panes, tabs and saved workspaces keep the source and destination visible at all times. Search, comparison, synchronisation and a central queue keep even demanding file operations under control.

  • Dual-Pane & Tabs
  • Remote & Cloud
  • Search, Compare & Sync
View product ↗
Version 2 · WindowsThe main rsk.guardian 2 window showing monitored folders and rule configuration

02

File automation

rsk.guardian

Monitors folders and turns triggers, conditions and actions into transparent local workflows.

Define once what should happen and when, instead of handling recurring file tasks manually. The application runs entirely locally and clearly shows which rule is active at any time.

  • Monitor folders
  • Combine rules
  • Log workflows
View product ↗
Version 2 · WindowsThe main rsk.rename 2 window showing the multi-step file workflow

03

File workflows

rsk.rename

Renames, copies or moves large numbers of files using custom rules — with previews, presets and automation.

The multi-step workflow takes you from file selection to reviewed execution. Recurring tasks can be saved as presets and run from the command line when needed.

  • Live preview
  • Custom rules
  • Presets & CLI
View product ↗
Version 2 · WindowsThe main rsk.qr 2 window with input fields and a large QR code preview

04

QR code generator

rsk.qr

Creates and customises QR codes for websites, Wi-Fi, contacts and other content entirely locally on Windows.

Choose your content, adjust the colours and appearance, and export directly in the right format. All data stays on your computer, with no uploads or user account required.

  • Many content types
  • Instant preview
  • Local export
View product ↗

Have a project in mind?

Let’s turn an idea into
something that works.

Discuss a project