Sebastian and Márton discuss building KMP libraries with Jay Shortway, the author of RevenueCat’s Kotlin Multiplatform SDK for in-app purchases.Resources:<ul> <li><a href="https://www.revenuecat.com/docs/getting-started/installation/kotlin-multiplatform" rel="ugc noopener noreferrer" target="_blank">RevenueCat KMP SDK</a></li> <li><a href="https://www.revenuecat.com/blog/engineering/how-we-built-the-revenuecat-sdk-for-kotlin-multiplatform/" rel="ugc noopener noreferrer" target="_blank">How we built the RevenueCat SDK for Kotlin Multiplatform</a></li> <li><a href="https://www.revenuecat.com/blog/engineering/how-our-hybrids-work/" rel="ugc noopener noreferrer" target="_blank">Hybrid SDK Architecture at RevenueCat</a></li> <li><a href="https://github.com/ttypic/swift-klib-plugin" rel="ugc noopener noreferrer" target="_blank">ttypic/swift-klib-plugin on GitHub</a></li> <li><a href="https://github.com/RevenueCat/purchases-kmp" rel="ugc noopener noreferrer" target="_blank">RevenueCat/purchases-kmp on GitHub</a></li> <li><a href="https://github.com/Kotlin/kotlinx-datetime/issues/382" rel="ugc noopener noreferrer" target="_blank">Consider moving `Instant` and `Clock` to the standard library · Kotlin/kotlinx-datetime</a></li> <li><a href="https://job-boards.greenhouse.io/revenuecat" rel="ugc noopener noreferrer" target="_blank">RevenueCat openings</a></li></ul><hr />Hosts:<ul> <li> Sebastian Aigner <ul> <li><a href="https://sebi.io/" rel="ugc noopener noreferrer" target="_blank">Website</a></li> <li><a href="https://bsky.app/profile/sebi.io" rel="ugc noopener noreferrer" target="_blank">Bluesky</a></li> </ul> </li> <li> Márton Braun <ul> <li><a href="https://zsmb.co" rel="ugc noopener noreferrer" target="_blank">Website</a></li> <li><a href="https://bsky.app/profile/zsmb.co" rel="ugc noopener noreferrer" target="_blank">Bluesky</a></li> </ul> </li></ul>Guest:<ul> <li> Joop Korteweg <ul> <li><a href="https://x.com/JayShortway" rel="ugc noopener noreferrer" target="_blank">Twitter</a></li> </ul> </li></ul><hr />(0:00) Intro(0:44) What’s RevenueCat(4:00) In-app purchases are hard(7:22) <a href="https://www.revenuecat.com/docs/getting-started/installation/kotlin-multiplatform" rel="ugc noopener noreferrer" target="_blank">The multiplatform SDK</a>(12:44) The demand for KMP(16:30) Hiring and team structure(18:42) <a href="https://www.revenuecat.com/blog/engineering/how-our-hybrids-work/" rel="ugc noopener noreferrer" target="_blank">SDKs for any framework</a>(21:27) Building on native SDKs(23:45) <a href="https://github.com/ttypic/swift-klib-plugin" rel="ugc noopener noreferrer" target="_blank">Improving iOS linking</a>(24:54) The SDK is on GitHub(26:05) Benefits of building on native(28:18) Designing a common API(33:21) Add-on modules for SDKs(37:30) <a href="https://github.com/Kotlin/kotlinx-datetime/issues/382" rel="ugc noopener noreferrer" target="_blank">Instant in the standard library</a>(38:04) Returning results from the API(39:53) API design decisions(44:57) Codegen opportunities(45:48) The best things about KMP(47:07) KMP improvements wishlist(48:28) The KMP journey(49:45) Wrap-up

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