For a long time now I haven't really released anything. Last thing I actually released was an app that's now offline (RepX), and that was around 2016 or 2017 (can't even remember). I have built things, at least started to build things but never quite got them out there. I…
I started teaching at the University of Winchester in September. I teach an introductory module about cyber security and how to design secure systems. My expectation was that students were rather technical (being in a BSc Cyber Security track) and have a good understanding of how computers generally work, what…
I have this tendency of working on many things at once, and as a result I don't really finish anything, I just make small progress until I switch context to start working on something else. This really kills my productivity. It seems obvious now but when I'm working on a…
It’s simply because I didn’t find an app that does what I needed to do. Maybe I didn’t look deep enough and I was too quick to start building. Maybe there is an alternative. But I didn’t find it yet. Short version: RepX lets you easily…
Last week I had started to answer questions on Quora. It's surprisingly addictive I should say, so I kept answering a couple of questions every day. As my interests include programming and various languages, I get plenty of "How do I learn to program in X?" or "As a beginner,…
I wrote this originally in 2017 and most chatbots are still just providing a bad form-filling experience in 2019. I think this post is still valid today. It's about how using a chatbot does not simply improve customer support and user experience. If it's not done right it just adds…
Problem: thresholding an image using a HTML5 2D canvas. It's a really simple problem, but if implemented wrong it can lead to really bad performance. Original (right. credits greyamoon) and thresholded transparent image (left). Live demo on JSFiddle.My initial idea was to make a function everyPixel(ctx, f) that…
For first, a Hackathon is a competition where hackers get together to build something cool. Lots of times designers and business people also join and the judging also takes the business side into consideration. Usually justifying how the idea is useful and/or generating revenue and showing some proof that…
This article was also published on Medium. I am glad I have contributed to open-source during the summer as part of the Google Summer of Code 2014 programme. For those who are not familiar with Google Summer of Code, it is a programme organised by Google and consists of connecting…
This is a very old article about a very old phone and an ancient Android version. But, it's 2019 and that phone still works fine(ish) - with Android v2. I can't do anything but call and text, but it works.Before you follow this article to install the ROM…