A Pypy Runtime for AWS Lambda

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Python is a great language for the on-demand style of Lambda, where startup time matters. In terms of execution speed, there are better choices available. Where computational performance matters one improvement is to use Pypy, the Python interpreter

Serverless on AWS Lambda

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Serverless computing is a cloud-computing execution model in which the cloud provider dynamically manages the allocation of machine resources. At my current project, I had the freedom to create a new service a service from

Make your website or web-app offline available

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Android developers vs. web One great advantage of native apps over web apps is that they don’t depend on an online connection to start. Therefore the startup is fast and you can use them in

Native- and Mobile Web Apps

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As a native apps developer since 2008, I have seen time and time again the wish to develop everything with one toolset. Most often, the toolset of choice is the web, or HTML, CSS and

This website switched to HTTPS

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My webhoster 1blu has finally added the possibility to get a free LetsEncrypt SSL certificate for this website. So www.ulrich-scheller.de is now available via HTTPS. Let’s Encrypt With LetsEncrypt getting an SSL certificate is free. There

Virtual Reality Experience with Google Daydream VR

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Virtual Reality is a hot topic these days. A few weeks ago I had the opportunity to test an Oculus Rift with Touch Controllers. PlayStation VR and HTC Vive have also been released lately. Android Developers like

Personal Jenkins Server with Docker

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Nowadays, every software development team should have a continuous integration server like Jenkins. This is as true for Android developers as for any other platform. It makes sure the current source code compiles and all the

Should you go for self-employment?

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I am now 9 months into my career as a freelance consultant and would like to share my experiences with it. The question if you should make that switch too depends on many factors and can not be

Implement a turn based game AI with optimizations

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My last post about implementing a turn based game ai became famous on Reddit/Programming for one day. It looks like many developers are interested in this topic. Some readers, with more knowledge of the topic than myself, have

Implement a turn based game AI (on Android)

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Game AI Developing a game AI can be as much fun as playing, especially when creating your own computer opponent. I am going to present you a simple pattern that works for nearly all turn based game