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pljung.de

The personal blog of Philipp Jung.

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Football World Cup

It's World Cup season, and it keeps delivering: dubious referee decisions, fans marching the streets celebrating and sometimes disrupting opposing teams' sleep and, of course, underdogs standing their ground against the great football nations' teams.

My Language Learning Setup 2025

A year ago, I decided to learn Spanish more seriously. I use Rosetta Stone to learn grammar and new vocabulary, and Anki to review flashcards.

Tips for Traveling in China as a European in 2025

For the past ten days my journey across China has been an amazing experience. The country is vast, yet its infrastructure is fantastic[^1], making it surprisingly convenient to explore.

Going Wired

I recently went down the rabbit hole of improving video conferencing quality. I found that replacing wireless equipment with wired equipment was both cost-efficient and effective in improving remote video conferencing quality.

Currency Conversion In A Data Warehouse

Finding the Closest Element in a Sorted Array

A coding problem about finding the 'most central' element in an array, which can be elegantly simplified by applying some maths.

Efficient Data Export from Firestore to BigQuery

I discuss two different approaches to transferring data from Firestore to BigQuery.

Synology Backup in Google Cloud Storage Archives

I own a Synology DS223j NAS and went on great lengths to figure out the ideal way of backing up my data on Google Cloud Storage.

The smartest Person in a Jazz Band: Thoughts on Working in a Team

I read 'The Passionate Programmer' by Chad Fowler, which made me think about teamwork.

Escaping the CSV Trap and Embracing Alternatives

After half a decade of loading structured data from CSVs, I share my thoughts on data formats and their implications for data practitioners.

Tabular Data Transferring Patterns

Patterns I notice in in practice when transferring and loading tabular data.

Trust

Thoughts on performance under pressure.

I Underestimated The Importance of Tooling

On the benefits of using the right tool for the right job.

Zeal and Dash for Reading Developer Documentation

It feels really good to use Zeal and Dash to read developer documentation.

Automating Backups With Btrbk On Fedora 34

A rough guide to setting up a backup routine on a machine running Fedora 34.

Predicting the Beginning of the End

With early vaccination data from the Robert Koch Institute, I run a linear regression to get an estimate to predict when the Germans will reach herd immunity.

Mutable Objects in JavaScript

Mutable data structures are tricky to work with, which is a tripping wire when updating state in a React app.

Languages, Fast and Slow

Some wisdom I learned from a friend about slow programming languages.

Learning Relaxations

A summary of the work I did in my Master's thesis.

The Essence of Backups in Linux

Fundamental thoughts on how to get started with backups on Linux.

Easy Concurrency in Python

I've written a bunch of Python code that needs to run faster. Here is what I learned, easily digestible in a guide.

Testing Scientific Code - How to Get Away with Bad Code

Some thoughts on how scientists can test their code.

Learn Programming without a Background in Computer Science

A few ideas on how to get started with programming without having studied CS.

Nebenhörer in Berlin

In 2019 habe ich an allen Berliner Universitäten Kurse belegt. Ich erzähle von meiner Erfahrung.

Was ich von Ansgar Oberholz gelernt habe

Im St. Oberholz am Rosenthaler Platz habe ich Ansgar Oberholz kennengelernt und von ihm übers Gründen gelernt.

Wie ich meine morgendliche Bildschirmzeit reduziert habe

Ich verbringe etwas mehr Zeit mit meinem Smartphone, als mir lieb ist. Und zeige, was ich angestellt habe, um weniger Zeit mit meinem Smartphone zu verbringen.

Fahrradverleih in Berlin

Ein Vergleich von Berliner Leihfarradanbietern.

Das ganze Jahr Fahrradfahren

Ein Erfahrungsbericht, wie ich im Winter in Berlin Fahrrad fahre.

A country for old men

Überlegungen zum Leben in einem Land mit der ältesten Bevölkerung weltweit.