As someone who does mostly infrastructure admin, and occasionally has to touch both PostgresDB and MySQL databases, I found this to be a fun set of challenges.

I would like to suggest an improvement to the user experience. The scenario text is currently displayed character-by-character, which significantly prolongs the time it takes to complete the "easy" scenarios. In my case, it took 10 minutes, with 8 of those minutes spent waiting for the text to appear. A faster display of the text would enhance the overall experience.