This is an app that allows people suffering from blindness or visual impairment to use a screen reader to roll the 6 different sized dice necessary to play the game dungeons and dragons and recieve audible feedback using the browser speechsynthesis api. mdn
The most simplified explanation of this app is it is a randomn number generator with a set of preset ceilings consisting of 4, 6, 8, 10 and 20. to be used in different situations. The app then uses speech synthesis to read the generated number