I wrote this as an exercise while learning React. At the time, it was almost a pixel perfect clone of the NYTimes crossword app.
You can see a demo of the app here. I made this crossword as a farewell to my coworkers at Oscar so you might not get very far!
If you want to use it with your own crosswords, copy the schema
from the demo above with your own layout and clues and place the json files in the dist/puzzles directory.