Christian Heilmann

Shifting an image with canvas

November 23rd, 2020

As part of my Tile Editor I needed a way to shift an image by x pixels left, right, up or down. I didn’t need to move the image, I needed to shift the pixels of the image. This allows you now to shift the image and thus makes painting seamless tiles much easier. Now, […]

How to persistently change third party web sites with browser developer tools

November 3rd, 2020

This has also been published on Medium and dev.to in case you prefer them. Often you find things in web sites that annoy you. And – as a web developer – you’re even asked to fix some problems in web sites without getting access to the source. Using developer tools in browsers you can change […]

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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