Christian Heilmann

Building a “shoutout” component in plain HTML/CSS/JavaScript

February 26th, 2025

Every Wednesday I host WeAreDevelopers Live on YouTube. Afterwards we cut out short videos to post on social media. What we needed was an obvious “shoutout moment” in the recording to indicate an interesting quote or when we moved on to the next topic – much like a clapper in classic movies to sync audio […]

How to trim a video in MacOS using Finder!

February 20th, 2025

Context menus are a treasure trove of features you miss otherwise. Did you know for example that you can trim videos in MacOS Finder? All you need to do is open the context menu on any video file, go to “Quick Actions” and select “Trim”: You then get a trimming interface that allows to drag […]

Derpify.js is now on npm and GitHub – a tool for these trying times…

January 27th, 2025

As the times we live in demand it, I released Derpify.js. It is an npm package (3 line method) that turns strings into strings that are randomly mixed upper and lower case. console.log(derpify(’All he wanted to say was I love you all.’))console.log(derpify('All he wanted to say was I love you all.')) gives you: ALL hE […]

80 years ago

January 27th, 2025

80 years ago today the concentration camp Auschwitz-Birkenau was liberated. Millions of people were killed there. Jews, Roma and Sinti, people with disabilities, homosexuals, political prisoners… All accounted for. Killed by people “just following orders”. An industrial destruction complex void of any emotion. A dehumanisation machine. Surrounded by villages of people who claim not to […]

Newsletter

Check out the Dev Digest Newsletter I write every week for WeAreDevelopers.

160: Graphs and RAGs explained and VS Code extension hacks Graphs and RAG explained, how AI is reshaping UI and work, how to efficiently use Cursor, VS Code extensions security issues.
159: AI pipelines, 10x faster TypeScript, How to interview How to use LLMs to help you write code and how much electricity does that use? Is your API secure? 10x faster TypeScript thanks to Go!
158: 🕹️ Super Mario AI 🔑 API keys in LLMs 🤙🏾 Vibe Coding Why is AI playing Super Mario? How is hallucinating the least of our worries and what are rules for developing Safety Critical Code?
157: CUDA in Python, Gemini Code Assist and back-dooring LLMs We met with a CUDA expert from NVIDIA about the future of hardware, we look at how AI fails and how to play pong on 140 browser tabs.
156: Enterprise dead, all about Bluesky and React moves on! Learn about Bluesky as a platform, how to build a React App and how to speed up SQL. And play an impossible game in the browser.

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