Sometimes when I have a little time off, I love to got to overthewire, hack the box and try to solve their challenges there. Even though I have to admit, I am not that great at those. However there are awesome resources helping you out such as hack tricks, pentest monkey or some YouTube channels such asLive Overflow, Traversy Media (anything for web development) or webpwnized . In this series I start with some challenges on overthewire and we take it from there... :)
During our LDACS maiden flight campaign MICONAV 2019, I had the pleasure of experiencing some medium mid air turbulences in our experimental aircraft Falcon Dassault D 20 while trying to fix a networking bug in an experimental toolchain. Coding never was more fun. :)