https://gitlab.com/christosangel/ladder
Ladder is a word puzzle, played in a terminal window.
Your starting point is an initial four-letter word.
Your goal is to transform this word, one letter at a time, through other valid words, and end up with the target word.
The tricky part is that on each entry, you can change ONLY ONE LETTER.
Get this into app form and I could see it being popular with the Wordle crowd.