A server-side rendered, no Javascript open-source chess tournament site that integrates loosely with Chess.com, Lichess, and USCF to verify a user's rating and confirm that they meet the Elo requirements for a tournament.
Thanks to @slashinfty for the pairing project: https://github.com/slashinfty/tournament-organizer.
Try it out now at https://joustchess.com.