Hacktoberfest is an annual event organized by DigitalOcean, encouraging developers worldwide to contribute to open-source projects, with a focus this year on chaos engineering through the LitmusChaos platform. Harness and the LitmusChaos community are actively participating by welcoming new contributors, offering mentorship, and recognizing valuable contributions. Participants can engage by addressing curated issues, attending office hours, and receiving guidance from maintainers to support the development of Litmus 4.0, a cloud-native chaos engineering platform used to test system resilience. This initiative allows individuals to explore open-source contributions, grow the chaos engineering ecosystem, and contribute to building a more resilient cloud-native future.