Tournament Sheets - checkbox brackets, single and double-elimination in Google Sheets

Demo of Google Sheets + Apps Script Interactive tournament brackets in Google Sheets.
Preview the template here:
docs.google.co...
Read more about this project on my website:
www.avimegiddo...
The music is "Cary Grant" by Smith Dobson.
Artist Smith Dobson V
Title Basement Bloodlines
Label Evander Music - Em 037 - www.evandermusi...
Released On 2/15/2007
Devin Hoff, bass;
Vijay Anderson, drums;
John Finkbeiner, guitar, recording engineer;
Dahveed Behroozii, piano
Smith Dobson V, vibraphone, organ.