The pseudo code on the stock image for developer.bbc.com is editable
developer.bbc.com
developer.bbc.com
The code also changes every time you refresh the page. First time I got it, it was some php. Then C++. Then a recipe for... Fibonacci numbers with caramel sauce?
Edit: After looking up the title, the "recipe" is actually an executable program written in some esoteric programming language.
The "recipe": https://www.dangermouse.net/esoteric/chef_fib.html
Info page for the Chef programming language: https://www.dangermouse.net/esoteric/chef.html
Wow. Definitely did not expect this