This started off as a simple project to do on an airplane, but people liked it, so I took it from
something made with an HTML <table> and vanilla JS to a more well-supported Angular app with graphics
and sound.
I don't own the copyright to Number Munchers, but all the code is original, and it's different enough, experience-wise, that it's fair to put an MIT license on it.
Run ng serve for a dev server. Navigate to http://localhost:4200/.
run prep.sh to build for production.