Explanation
The customer can find more information on Salesforce open-source and community sprint information on Trailblazer Community. Trailblazer Community is a platform that connects Salesforce customers, partners, employees, and enthusiasts to learn, share, and collaborate on Salesforce topics and projects. Trailblazer Community provides information on Salesforce open-source and community sprint events, such as dates, locations, agendas, or registration links. The customer can also join groups, forums, or blogs related to Salesforce open-source and community sprint topics on Trailblazer Community. Trust.salesforce.com, Partner Community, or AppExchange are not platforms where the customer can find more information on Salesforce open-source and community sprint information. References:
https://trailhead.salesforce.com/en/content/learn/modules/trailblazer-community-basics
https://trailblazercommunitygroups.com/sprints/