WebAuthn and Secure Payments Confirmation (SPC)

The following Codepen’s are quite old (mostly done in 2012/2013 when I was super into CSS and getting started with programming), but are super cool. They showcase some of my early experiments with CSS3 animations, transformations, and visualizations. See the Pen CSS Gyroscope by Christian Fei (@christian-fei) on CodePen. See the Pen ...

In the past few years I embraced the mantra “Wanna learn something? Recreate it”. What do I mean by it? Here some examples: I wanted to better understand how a static site generator (SSG) worked, so I created devblog, and even converted this very site to be compatible with it Are you easily stunned by charts, real-time updates, and perhaps crypto...

If you navigate to store.epicgames.com on an iPad with iOS 18 beta you’ll have the ability to scan a QR code on your iPhone to download Epic’s app store. But you don’t want that! You want to install it on your iPad to play Fortnite, Fall Guys and Rocket League! There is an easy way around it. – update 2024-10-12 The procedure to install the store...

Let’s say you have an eleventy blog, and want to show the tags related to a given blog post. E.g. this post is tagged with eleventy as you can see above. But, it has also other tags attached, e.g. post and featured for example, that are mainly used for creating the posts and featured collections. The HTML/nunjucks code for showing the taglist on...

Recently I converted my old Kindle Paperwhite 3 (jailbroken) to a Tapo surveillance cam viewer. It was fun, but I recently had the idea to make a better use for it. Namely making an image carousel showing nice pics I took over the years. – Project overview The idea is quite simple: create an init.d conf to start the script at boot prepare the...