Confluent's hack days foster collaboration across diverse teams, enabling the creation of innovative projects that address various challenges and needs within the company. These events encourage risk-taking and bottom-up inspiration, allowing employees to tackle ideas not typically included in regular sprints. Recent hack day projects at Confluent included initiatives such as enabling multilingual queries in Loopio, developing cryptographic stream integrity verification for Kafka, improving data compression using shared dictionaries, automating the cleanup of unused cloud resources with Project Roomba, and creating Conflack, a tool to preserve Slack messages in Confluence. These projects highlight the company's commitment to exploring new technologies and solutions while promoting teamwork and creative problem-solving.