Hacktoberfest 2023, taking place from September 26 to October 31, is an annual community-building event celebrating open-source software and its contributors. Participants, including developers, writers, and designers, are encouraged to contribute to open-source projects by resolving issues tagged with "hacktoberfest." Successful contributions not only earn participants rewards, such as a tree planted in their name or a digital prize, but also commemorate the 10th anniversary of Hacktoberfest. QuestDB, an open-source high-performance time-series database project built in Java, C++, and increasingly Rust, is participating in Hacktoberfest by offering GitHub issues in its core database and web console projects for contributors to tackle. Participants are advised to follow the official Hacktoberfest and QuestDB guidelines, engage with the community on the QuestDB forum, and utilize the #contributors channel for support.