Thanks to everyone who's been using SoundCheckShuffle. This app was made as a side project by an audio engineer and was offered for free, and thus domain and hosting fees have quickly made it unrealistic to continue the app as it is.

For those who've been making use of it online, the site will continue to be hosted for free at soundcheckshuffle.infinityfree.me.

For anyone who'd like to play with the code for themselves, or run an offline copy, the site exists as a single self-contained HTML file at https://github.com/IsraelLeslie/Soundcheck-Shuffle.