Honest q: could you get sued for that? Likely at least a cease and desist, right?

There are - literally, and at the moment of this post - 473 referenced Wordle clones in 118 languages. Among those 473 clones, very few derive from the original Wordle rules or layout.

https://rwmpelstilzchen.gitlab.io/wordles/

Sure you always can. Will it be ruled against them? Its a pretty trivial and not unique site/game.

Copyright? Patent? Registered design?

Pretty nice implementation, but it's missing the best feature: social sharing

You're in luck! You can view completed puzzles by clicking the grid icon in the top right, and you can copy a Wordle-style sharing blurb by clicking on an individual puzzle.

I'll take the feedback that this feature should definitely be made more obvious.

I like it! However there is no "hard" mode where clues have to be used.

Love it, my girlfriend and I are on puzzle 8 now, thank you. Add a tip jar.