Yes, this is the site that inspired me! I was frustrated that it was so hard to navigate to cognates (word cousins) or from roots to descendants. So mine is focused on navigating between words like that
Wow, I have been thinking lately about building something similar. Looks very nice!
I'm fascinated by the hidden connections in our language—like "galaxy" being connected to "galactose" because of the Milky Way.
I used NLP to convert written etymology paragraphs from wiktionary into a database of words and connections.
Also interesting are the Proto-Indo-European roots, like "h₂enh₁", which is a 10k-year-old reconstructed word meaning "breath", that has about 1k modern day descendants ranging from "animate" and "unanimous" to "anemone".
https://www.etymologyexplorer.com