In this talk, the speaker discusses building a social app on top of Matrix, a decentralized communication protocol. They talk about their motivation for creating the app and the goals they had in mind, such as convenience, security, and privacy. They explain how the app works and how it can be used to share updates and pictures with friends and family, while ensuring privacy and protection of data. The speaker also gives an overview of the challenges they faced and the progress they have made with the app. They share that a beta version of the app is available on Android and iOS, and they plan to work on improving discoverability and adding more features in the future. They also mention their plans for growth and monetization, focusing on getting expert users and building word-of-mouth recommendations. They wrap up by inviting users to try out the app and provide feedback.