Hard Disk Data Recovery

A friend of mine recently asked me to help recover data from an old hard disk that was barely readable. The file system was badly damaged, the disk could not be recognized by the OS at all. I managed to copy whatever data sectors were readable — but then, how do I recover the files? … Read more

Run Log 2022

In January 2022 a few friends and I formed a small running group in Shanghai. We set a goal to run 500 km each in the year! To keep track of progress I created the running distance chart below using amCharts. I hope it motivates people in our group to run more! We also have … Read more


It took some time, but I finally have my own little company in Shanghai — and in the last week I set up a new web site for it. I hope this helps attract customers but in the process I also learned a lot about modern web design.