Helge Klein

Changing the Location of PowerShell Profile Scripts

Helge Klein — Sat, 14 Mar 2026 00:00:00 +0000

A PowerShell profile is an init script that is executed when the shell starts. PowerShell searches for profile scripts in hard-coded locations. This article explains how to move profile scripts to any directory of your choice.

Changing the Location of the Windows Terminal Settings Files

Helge Klein — Sun, 08 Mar 2026 00:00:00 +0000

Windows Terminal stores its settings in configuration files that resides in the Windows user profile. This article explains how to move them to any directory of your choice.

Where are the Settings Files Located?

The location of the Windows Terminal settings file is hard-coded. The exact path depends on the app variant you installed, but it’s always in the user profile:

Fast & Silent 5 Watt PC: Minimizing Idle Power Usage

Helge Klein — Sat, 07 Feb 2026 00:00:00 +0000

This micro-series explains how to turn the Lenovo ThinkCentre M90t Gen 6 into a smart workstation that consumes only 5 Watts when idle but reaches top Cinebench scores while staying almost imperceptibly silent. In the first post, I showed how to silence the machine by replacing and adding to Lenovo’s CPU cooler. In this second post, I’m listing the exact configuration that achieves the lofty goal of combining minimal idle power consumption with top Cinebench scores.

Fast & Silent 5 Watt PC: Lenovo ThinkCentre M90t Modding

Helge Klein — Sat, 31 Jan 2026 00:00:00 +0000

This micro-series explains how to turn the Lenovo ThinkCentre M90t Gen 6 into a smart workstation that consumes only 5 Watts when idle but reaches top Cinebench scores while staying almost imperceptibly silent. In this first post, I’m showing how to silence the machine by replacing and adding to Lenovo’s CPU cooler. In a second post, I’m listing the exact configuration that achieves the lofty goal of combining minimal idle power consumption with top Cinebench scores.

Scripted WordPress to Hugo Migration

Helge Klein — Sun, 25 Jan 2026 00:00:00 +0000

After having published in WordPress for almost 20 years, it was time for a change. This site is now rendered by Hugo, a static website generator built for Markdown content hosted in a Git repository. The migration from WordPress (HTML) to Hugo (Markdown) was far from trivial. Since I couldn’t find any tool for the job, I developed my own set of migration scripts that fully automate the migration process. You can find them on GitHub along with extensive documentation.

Mitsubishi Heat Pump Data in Home Assistant via Modbus

Helge Klein — Sat, 27 Dec 2025 00:00:00 +0000

This article shows how to get detailed information about your Mitsubishi heat pump’s status and operations into Home Assistant.

Prerequisites

You’ll need a Mitsubishi Modbus interface, either the older A1M (serial Modbus/RTU via RS-485 only) or the newer A1M+ (Modbus/TCP via Ethernet in addition to Modbux/RTU). I’m using the Ethernet variant.

GitHub: Authenticated Access via SSH

Helge Klein — Sat, 06 Dec 2025 00:00:00 +0000

This article describes how to set up authenticated access to a (private or public) GitHub repository from Linux.

Create & Set Up an SSH Key

SSH Key Creation

Create a new SSH key:

Fixing IPv6 Intermittent Packet Loss Caused by Windows Firewall

Helge Klein — Thu, 16 Oct 2025 00:00:00 +0000

This article shows a simple solution to a weird networking problem that plagued me for hours: IPv6 packets were sometimes lost; IPv4 was not affected.

Problem: IPv6 Ping Timeouts and Packet Losses

Symptom: Teams Issues

I noticed the problem first when there were intermittent connectivity issues in Teams during a meeting.

Fixing VS Code UI Unresponsiveness Caused by GitHub Copilot Extension

Helge Klein — Fri, 03 Oct 2025 00:00:00 +0000

This article shows a simple solution to a problem that doesn’t seem to be adequately documented: VS Code UI lags, freezes, and delays caused by the GitHub Copilot extension.

Problem: VS Code UI Becoming Slow

Having worked on a Python project for a while, I noticed that VS Code’s UI was frequently freezing for seconds at a time. This was happening in various places of the UI: the editor itself but also in the GitHub Copilot Chat window. Copilot also seemed to be taking more and more time getting ready to answer, and the extension-host process would fully saturate one CPU core for long periods of time.

How to Convert/Recreate PNG Logos to SVG With Inkscape

Helge Klein — Sat, 27 Sep 2025 00:00:00 +0000

Bitmaps tend to have noise and imperfections, especially if they’ve been generated by AI. Vector graphics, on the other hand, trace the outline of elements with elegant curves. Converting from the real world of bitmaps to the ideal world of vectors requires ignoring the actual pixels and seeing an idealized structure instead. That is not something automated conversion tools can do today, at least not those I’ve tested. Instead of converting a PNG to SVG you should, therefore, recreate it in a vector graphics image editor. This article shows how to do that in the free Inkscape.