I have a created a new Discord bot named Bracketeer. Essentially, it allows you to run tournaments in your Discord server (similar to Challonge).

Details of what it does and how to interface with it are here (in addition to the invite code): https://slashinfty.github.io/bracketeer/

Made a couple updates. Rather than relying on server admins to run tournaments, you can designate a server role to act as a tournament organizer. Also updated the live pairings and standings viewer.