Christian Heilmann

Firefox OS auf der MobileTechCon Berlin 2014

September 5th, 2014

Vor zwei Tagen war ich in Berlin auf der MobileTechCon und hielt neben der Eröffnungskeynote am zweiten Tag auch einen Vortrag über den aktuellen Stand von Firefox OS. Da das Publikum den Vortrag gerne auf Deutsch haben wollte, hatte ich kurzfristig umgeschwenkt und ihn dann auf sowas wie Deutsch gehalten. Hier sind die Slides und […]

No more excuses – subtitle your YouTube videos

August 20th, 2014

I was just very pleasantly surprised that the subtitling interface in YouTube has gone leaps and bounds since I last looked at it. One of the French contributors to Mozilla asked me to get subtitles for the video of the Flame introduction videos and I felt the sense of dread you get when requests like […]

Makethumbnails.com – drop images into the browser, get a zip of thumbnails

August 18th, 2014

About 2½ years ago I wrote a demo for Mozilla Hacks how to use Canvas to create thumbnails. Now I felt the itch to update this a bit and add more useful functionality. The result is: http://makethumbnails.com It is very easy to use: Drop images onto the square and the browser creates thumbnails for them […]

Creating a set of icons in various sizes in the browser

August 15th, 2014

Hooray, I did do some coding again for a change! One of the issues I had with submitting apps for the Firefox Marketplace is that the validator of the manifest always complains about me missing out on certain icon sizes. That’s why I thought it’d be sweet to have an in-browser tool to generate all […]

Presenter tip: animated GIFs are not as cool as we think

August 11th, 2014

Disclaimer: I have no right to tell you what to do and how to present – how dare I? You can do whatever you want. I am not “hating” on anything – and I don’t like the term. I am also guilty and will be so in the future of the things I will talk […]

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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