I agree. I suspect with some level of curmudgeonness that it's because author calls themself a pixel-artist. I have a brutalist CLI/programmer take on bullet journalling from vim, just for comparison:
https://jodavaho.io/posts/bash-journalling.html
https://jodavaho.io/posts/bullet-journalling.html
It is essentially:
- One hidden folder for journal entries
- Each entry is a file of the form YYYY-MM-DD.md
- A bash alias will open today's file (or "yesterday" or "next thursday" or "2 weeks") using the date cli util
- A few vim formatting steps make the already-well-functioning github markdown work very nicely.