Help me find tutorial.

Hey everyone! It’s around month ago, I’ve found some creator here, who does make a DIY notebooks similar to Moleskine or Leuchtturm. However I cannot find the original post, just have clues. The notebook is black leather with classic basic book binding. Those notebooks were bit chunkier than normal, and they had a creamy (yellowish) paper. I remember, that the redditor posted some tutorial for binding that particular notebook. It could be also small format - A6, or something similar. I also remember that the redditor had beautiful handwriting and also did some colorful sketches with watercolor. I hope that someone else remembers that. I already tried looking in some subreddits, but every time with no luck.

Thanks for any clue!