The best working mario kart tour hack for unlimited gems is right here.
https://marketplace.whmcs.com/group/mario-kart-tour-hack
https://rushwarshack.bandcamp.com/album/mario-kart-tour-free-gems
https://www.jssor.com/alcruz2019/mario-kart-tour-gems-free.slider
https://seositecheckup.com/seo-audit/nonisesiwanti.wixsite.com/mario-kart-tour-hack
https://headwayapp.co/nonisesiwanti-wixsite-changelog
https://startupmatcher.com/s/vianinc
https://www.mojomarketplace.com/user/mariokarttourhack-IC2TgVOifH
https://gumroad.com/mariokarttourhack
http://uxmag.com/readers/mario-kart-tour-hack-gems