I've update the script to enable support for other languages for the messages it generates.
For now, en_US, es_ES and nb_NO are available.
As a challenge, I decided to add support for other languages. It took a bit of work through trial and error to get the desired result and it has finally landed.
The original language as I wrote the script was en_US and because my girlfriend is Spanish I decided to include it as well. Aaaand because I am Norwegian, I also added it to the list.
Next up will be, I guess, to simplify some of the strings to get rid of redundancies, however I am happy that it works as well as it does.
I've also removed a few functions I had plans for and optimized the _blog_idx_for_index function for speed by working on the content in memory and writing the file to disk once.
You can follow the progress on GitHub.