The Hasura Hacktoberfest Fiesta is a month-long event encouraging developers to make meaningful contributions to open source software. Participants with four pull requests (PRs) accepted between October 1-31, 2023 will receive a unique digital reward from Hacktoberfest and have the chance to win $1000 by building the fastest GraphQL gateway in Hasura's supergraph Top-N challenge. Contributions can also be made to Hasura Docs, with participants receiving a t-shirt and sticker pack for accepted contributions. The deadline for submissions is October 31, and reviewing of contributions will continue until November 10.