And the seventh day in Fortran90! Personally, I find Fortran90 very easy to handle, it even feels kind of pythonic... Look at the screenshot, If you are proficient with python, you could rewrite the code into python without problems, even if you never touched any Fortran!
As @blinry has triple the experience with alternate universes than I, they developed the mechanics of the solution.

#adventOfCode #fortran

And now we solved the sixth day in clojure!

The second part felt a bit hacky because we just built a string that evaluates to the correct code, but it worked on the first try!

As the problems now get more and more difficult, we get faster by using proper languages and not trying to do everything in butterflies.

#adventOfCode #clojure

We solved the fifth day of advent of code – in nu shell script!

It's a very friendly shell where all data is structured. It worked really nicely for an advent of code task.
We even managed to use recursion, although the default recursion limit doesn't seem like it's intended to be used. :3

#AdventOfCode #nuShell