This is a talk I held at PyCon IT 2023: https://pycon.it/en/submission/xwme (preliminary recording: https://www.youtube.com/watch?v=z77kTTJ9AHg?t=20883)
The slides are in slides.md. You can just look at them in a normal Markdown viewer or text editor. The weird lines starting with an exclamation mark are special syntax for representty, which you can also use to show the slides.
The resulting code is in mypdb.py (and the accompanying, buggy code in — you guessed it — buggy_code.py).
If you have any questions or comments, feel free to open a discussion post on Github, or contact me directly.