I'm Balthasar Hofer, Teacher and Developer
Online DBMS to query any hosted DB. No need to install anything or to worry about closed ports (e.g. in schools or companies).
Live coding with Python in the browser. Write Python code and see the results immediately.
Library to program the Micro:bit with Python to control the Maqueen Plus V2 robot (by EV3 dfrobot). I'm the author and maintainer of the library.
Demonstration of SQL-Injection attacks in a simple web application. In this webshop, all database queries used are intentionally vulnerable to sql injection.