Ulrich Scheller, Android & AWS Consultant

Unlocking Digital Doors: The Importance of Accessibility for All

18 December, 2024 Ulrich Scheller 0 Comments 2 categories

Accessibility in digital design isn’t just a matter of ticking a box or following regulations. It is about creating a world where everyone has equal opportunities to engage, interact, and benefit from digital content. When

European Accessibility Act and Barrierefreiheitsstärkungsgesetz

8 December, 2024 Ulrich Scheller 0 Comments 2 categories

As the digital landscape evolves, it’s becoming increasingly essential for businesses to ensure their products and services are accessible to all users, including those with disabilities. Starting from June 28, 2025, companies providing (Android) apps

German Paragliding XC Champion

6 December, 2024 Ulrich Scheller 0 Comments 3 categories

Initially, this website was created to present my professional career and ideas around software development. Recently, with my work on paragliding tracklogs and the Thermal Map, it has also become a personal space. This paragliding

See the Thermal Map while flying

8 July, 2021 Ulrich Scheller 2 Comments 1 category

Many pilots asked me if it is possible to use the Thermal Map while flying. And indeed, this was the initial idea of the whole project. But it is hard to debug when you need

Thermal Map coverage and updates

1 May, 2021 Ulrich Scheller 0 Comments 1 category

The Thermal Map has gained traction in the paragliding community. The well-known German blog Lu-Glidz has written an article explaining how to use it. Usage of the website has peaked after the article was published

Calculate wind from thermals

21 January, 2021 Ulrich Scheller 0 Comments 3 categories

This post is a followup to the last one about Paragliding data gems. We have collected lots of flights and their GPS location data. From this, several million thermals were extracted and shown on a

Paragliding data gems

2 January, 2021 Ulrich Scheller 0 Comments 3 categories

Paragliding is my beloved hobby and besides offering stunning views and perfect days outside, it also provides a huge amount of flight data to process and play around with. Sites like xc.dhv.de, XContest contain millions

A Pypy Runtime for AWS Lambda

11 December, 2018 Ulrich Scheller 0 Comments 2 categories

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

23 July, 2018 Ulrich Scheller 0 Comments 1 category

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

25 June, 2017 Ulrich Scheller 0 Comments 2 categories

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