Christian Heilmann

Two tools to create QR codes for free and without any ad breaks

June 19th, 2025

I often have to create QR codes and whilst the built-in generator in browsers is good enough, I sometimes want to customise the look with a logo in the centre. There are quite a few QR generators out there, but they come with lots of advertising, interstitials and other annoyances. So here are two generators […]

TIL: Smart glasses aren’t just for pricks, they are an accessibility aid

June 18th, 2025

I wasn’t a fan of smart glasses. Mostly because of the way they were advertised as a tool for influencers, people who constantly want to stream or those who need to always have the newest and coolest in terms of gadgets. I also see them as a privacy and security worry – there were quite […]

Excellent tools: EditGPT – an AI powered review and edit suite for writers

May 26th, 2025

There is no doubt that AI can help a lot when writing documents. There is also no doubt that it can be detrimental to both quality and the writing process if the AI-powered tool doesn’t have a user experience tailored to the task at hand. Generated Text and Its Downsides We live in a world […]

About showing the “open to work” badge

May 20th, 2025

I just came across a post on X that stated “nothing makes me want to hire someone less than this”, with a picture of the “open to work” badge LinkedIn offers job seekers. This being X, I thought I answer using appropriate voice: This, albeit succinct, is not very enlightening, so let me elaborate… Like […]

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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