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In the 15th episode of React Universe On Air (formerly known as The React Native Show Podcast), our host Łukasz Chludziński (https://twitter.com/loginlukasza, and his guests, Maciej Jastrzębski (https://twitter.com/mdj_dev) and Michał Pierzchała (https://twitter.com/thymikee) introduce the Reassure - brand new, Open Source tool for measuring regression in performance in React Native and, soon to be released, React web apps. What’s more, after the “talking” part, our experts prepared a live coding session to show you what Reassure can do, how it works and how to use the library properly. You’ll hear about: What is Reassure? What problems does Reassure solve? What problem the library doesn’t solve? Omits on purpose. Reassure features description. As the reassure was originally an in-house project created for one of our clients, Entain, in the next part, Maciej and Michał reveal the story behind creating the library and then moving it from in-house project to Open Source library. You’ll hear about: The detailed story behind creating Reassure. Details of the collaboration with Entian. Full Reassure team. How to move an in-house library to Open Source? Tech and law challenges. In the last “talking” part, Maciej and Michał talk about their plans for the future development of Reassure. You’ll hear about: Making Reassure first-class support for web React, not only for React Native. Collaborating with hardware/CI companies to create a reliable, easy-to-use environment to run stable performance tests. Creating ready to use GitHub Actions to reduce manual setup. After that, Maciej takes the stage to present the Reassure abilities with a special live coding session. Check out the Reassure page: https://www.callstack.com/open-source/reassure?utm_campaign=Reassure&utm_source=youtube&utm_medium=social&utm_content=reassure_podcast_description_link Learn more about our Open Source projects: https://www.callstack.com/open-source?utm_campaign=Reassure&utm_source=youtube&utm_medium=social&utm_content=reassure_podcast_description_link Need help with performance optimization in your apps? Talk to us! https://www.callstack.com/react-native-performance?utm_campaign=Reassure&utm_source=youtube&utm_medium=social&utm_content=reassure_podcast_description_link Discover how we can help your company: https://www.callstack.com/services?utm_campaign=Reassure&utm_source=youtube&utm_medium=social&utm_content=reassure_podcast_description_link Check out the other episodes of our podcast: https://www.callstack.com/podcast-react-native-show?utm_campaign=Reassure&utm_source=youtube&utm_medium=social&utm_content=reassure_podcast_description_link Do you want to work with us? We’re looking for Senior React Native developers! Check out the details and apply here: https://www.callstack.com/senior-react-native-developer?utm_campaign=Reassure&utm_source=youtube&utm_medium=social&utm_content=reassure_podcast_description_link You can also watch the episode on our YouTube channel: https://youtu.be/8pTQKBHFs-8 Be sure to follow us on Twitter to stay up to date with the upcoming episodes: https://twitter.com/callstackio Enjoy!