The exactly-five-letter word guesser that includes virtual keyboard that paints keys as hints as the game progresses?
After explicitly mentioning in a comment that the game was derived from Wordle - "I came across https://bert.org/2021/11/24/the-best-starting-word-in-wordle... on HN the other day".
The OP now added "About", with weasel-worded reference to Wordle. Jesus. How hard is it to just acknowledge other people's work that you are directly borrowing from.