Posts by Year

2024

Basic Python project setup

6 minute read

Setting up an existing Python project from a fresh clone shouldn’t be a chore. Automate the process with a setup script.

Evaporating a pot of water

16 minute read

As part of tutoring physics and maths to high school students, I sometimes write up deep-dive explanations of questions arising during lessons. The question...

Breaking spaces in vim

1 minute read

Some text editing software packages seem to insert non-breaking spaces into files willy-nilly. This can be a pain if you don’t want them. Also, they’re ver...

Avoiding stringy eval in Perl

6 minute read

Once upon a time, I used to take an active part in the CPAN Pull Request Challenge (and later in the Pull Request Club). One task I tackled as part of each ...

German Perl/Raku Workshop Frankfurt 2024

12 minute read

This week I was at the German Perl/Raku Workshop in Frankfurt. This is the main yearly meetup of the German-speaking Perl/Raku community. The event isn’t j...

Sailplane glide distance

7 minute read

As part of tutoring physics and maths to high school students, I sometimes write up deep-dive explanations of questions arising during lessons. The question...

Starting ssh-agent in Windows PowerShell

2 minute read

As someone who works mostly on Linux, there seem to be a multitude of issues for me to stumble over when having to use Windows. Using ssh in Windows PowerSh...

Building and testing Raku in AppVeyor

22 minute read

Trying to get an old Raku project up and running again led me down a deep rabbit hole. I ended up working out how to set up, build, and test Raku projects on...

Hotel hotspot hijinks

7 minute read

Ever been staying at a hotel and gotten annoyed that you always have to open a browser to log in for wireless access? Yup, me too. A recent instance was pa...

Back to top ↑

2023

ptc-it.de is now peateasea.de

1 minute read

It’s been annoying me for a while now that the URL for this blog somehow just didn’t sound nice. I finally came up with a better-sounding domain name and ha...

German Perl/Raku Workshop Frankfurt 2023

8 minute read

It was that time of the year again: late winter/early spring; time for the German Perl/Raku Workshop. This year (2023) it was held in Frankfurt and thus hos...

Vim hjkl arrow keys T-shirt design

1 minute read

Back in 2018 I found a T-shirt featuring vim’s hjkl arrow keys but stocks were sold out. I therefore had a dab at designing my own.

Reverting migrations in Django

4 minute read

When developing Django applications it’s sometimes necessary to revert (i.e. undo) a migration, especially if something didn’t quite work as planned. If som...

Back to top ↑

2022

Rewriting author information in Git commits

1 minute read

Ever needed to change your email address in your Git history? For instance, you’ve mistakenly used your personal email address in a repository at work? Here...

Tunneling through a gateway server via SSH

9 minute read

Some of the servers I manage are hidden behind a corporate firewall and hence not accessible from the open internet. In order to access them from my office ...

Headless Cordova Android builds on Jenkins

23 minute read

This is a fairly old story, nevertheless I still think it’s worthwhile telling, just in case someone else wants to build Android APKs from Cordova within the...

German Perl/Raku Workshop Leipzig 2022

9 minute read

The workshop was held only online last year due to the pandemic, thus it was really nice to be able to see people in-person again (my first workshop/conferen...

Back to top ↑

2021

Agile Testing Days 2021

21 minute read

This is the first in-person conference for me in almost two years. Crazy times! Below are my notes from the talks that I attended at the Agile Testing Days...

Weaning my website off cookies

9 minute read

Do you find having to accept or decline cookies everywhere on the web annoying? Me too. That’s why I decided to remove cookies from this blog. Here’s how I...

Pull Request Club: April 2021

5 minute read

The Pull Request Club is a way to connect open source maintainers to contributors through monthly assignments. It’s free to join up (just use your GitHub lo...

Back to top ↑

2020

Two handy mutt tips

5 minute read

Mutt is a very powerful email client, mainly because it’s terminal-based and because it has a vast array of terse commands reminiscent of the terse command p...

Backing up photos from Android to Debian

9 minute read

One would think that since Android is a Linux-based operating system, that integration between Android devices and Linux computers would work rather seamless...

Creating a random secret key in Raku

2 minute read

This post might seem a bit silly, because I’ve already posted this tip on Twitter about a year ago. Nevertheless, I needed exactly this piece of information...

Relative copy and paste in vim

5 minute read

Sometimes there seems to be so much hidden power in vim that it’s just stunning. It’s like there’s a hidden reservoir of power just underneath the surface o...

Back to top ↑

2019

Back to top ↑

2017

Helping to clean CPAN: January 2017

8 minute read

… where I get out my virtual broom and sweep up cruft I can find in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Back to top ↑

2016

Helping to clean CPAN: December 2016

11 minute read

… where I get out my virtual broom and sweep up cruft I can find in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Helping to clean CPAN: November 2016

11 minute read

… where I get out my virtual broom and sweep up cruft I can find in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Controlling screen brightness via ACPI

9 minute read

Really, this is just a workaround for an issue I haven’t completely understood. Nevertheless, since I had to work out how I’d handled brightness control via...

Helping to clean CPAN: October 2016

8 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Helping to clean CPAN: September 2016

9 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Helping to clean CPAN: August 2016

9 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

YAPC::EU 2016 Day 3

7 minute read

These are my notes from the talks I attended at the third day of YAPC::EU 2016.

YAPC::EU 2016 Day 2

7 minute read

These are my notes from the talks I attended at the second day of YAPC::EU 2016.

YAPC::EU 2016 Day 1

6 minute read

These are my notes from the talks I attended at the first day of YAPC::EU 2016.

Helping to clean CPAN: July 2016

7 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Helping to clean CPAN: June 2016

7 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Helping to clean CPAN: May 2016

7 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Helping to clean CPAN: April 2016

6 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

NPLW 2016

5 minute read

The Dutch Perl Workshop (NLPW) was held on the 1st of April, 2016. Many jokes were made about the date being no joke… Here are some of my impressions about...

Helping to clean CPAN: March 2016

7 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Helping to clean CPAN: February 2016

8 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Helping to clean CPAN: January 2016

8 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Back to top ↑

2015

Helping to clean CPAN: December 2015

6 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Helping to clean CPAN: November 2015

8 minute read

… where I get out my virtual broom and sweep up cruft in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Helping to clean CPAN: October 2015

4 minute read

… where I get out my virtual broom and sweep up cruft I can find in my assigned distribution for this month’s edition of the CPAN Pull Request Challenge.

Processing files with spaces in filenames

5 minute read

Sometimes I get files from friends who use certain graphical operating systems, where it’s ok to use spaces in filenames. Processing these files on Unix isn...

Cleaning the CPAN cage: January 2015

2 minute read

In the first installment of my participation in the CPAN Pull Request Challenge I was assigned the module XML::NamespaceSupport. The module enables one to pr...

Back to top ↑

2014

Installing MinGW doesn’t suck anymore

14 minute read

Recently a PhD student at the institute where I work wanted to use make and gfortran on a Windows box without having to install Cygwin in order to compile a ...

Windows Git Installation

16 minute read

A version control system is fundamental to the work of anyone developing software, whether it be scientific software or not. This is one of the fundamental ...

Test suite profiling

15 minute read

Recently at $work I found that our test suite was taking longer and longer to run and had begun to slow down development. A long-running test suite smells of...

Back to top ↑