--- title: Margelo Joins Callstack to Advance High-Performance... description: Margelo, the company behind Nitro Modules, VisionCamera, and react-native-mmkv, is joining Callstack in a deal valuing Margelo at more than €20 million. The... canonical: https://daily.dev/posts/margelo-joins-callstack-to-advance-high-performance-react-native-engineering-gaygwkub9 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Margelo Joins Callstack to Advance High-Performance React Native Engineering | daily.dev og:description: Margelo, the company behind Nitro Modules, VisionCamera, and react-native-mmkv, is joining Callstack in a deal valuing Margelo at more than €20 million. The... og:url: https://daily.dev/posts/margelo-joins-callstack-to-advance-high-performance-react-native-engineering-gaygwkub9 og:image: https://api.daily.dev/og/posts/GAygwKUb9.png og:image:alt: Margelo Joins Callstack to Advance High-Performance React Native Engineering og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Margelo Joins Callstack to Advance High-Performance React Native Engineering **[Nitro Modules](https://daily.dev/sources/margelo)** · 1 min read · 1 upvotes · 0 comments ## Summary Margelo, the company behind Nitro Modules, VisionCamera, and react-native-mmkv, is joining Callstack in a deal valuing Margelo at more than €20 million. The move pairs Margelo's performance-focused React Native engineering and open-source libraries with Callstack's decade of enterprise React Native delivery experience. Margelo's open-source libraries will remain open source, with creator Marc Rousavy continuing to lead their development. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What happened to Margelo, the company behind VisionCamera and Nitro Modules? Margelo joined Callstack in a transaction valuing Margelo at more than €20 million, combining Margelo's performance-first React Native engineering and open-source work with Callstack's decade of experience delivering React Native at enterprise scale. Margelo's open-source libraries, including Nitro Modules, VisionCamera, and react-native-mmkv, remain open source, with creator Marc Rousavy continuing to lead their development. _Developers relying on VisionCamera or Nitro Modules can follow ecosystem shifts like this on daily.dev._ ## Similar posts on daily.dev - [React Native Enterprise Framework is now Rock](https://daily.dev/posts/react-native-enterprise-framework-is-now-rock-wliqcevdw) · Callstack Blog · 0 upvotes · 0 comments --- Tags: [#open-source](https://daily.dev/tags/open-source), [#react-native](https://daily.dev/tags/react-native) [View this post on daily.dev](https://daily.dev/posts/margelo-joins-callstack-to-advance-high-performance-react-native-engineering-gaygwkub9) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Margelo Joins Callstack to Advance High-Performance React Native Engineering","url":"https://daily.dev/posts/margelo-joins-callstack-to-advance-high-performance-react-native-engineering-gaygwkub9","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/margelo-joins-callstack-to-advance-high-performance-react-native-engineering-gaygwkub9"},"datePublished":"2026-09-01T18:26:27.915Z","dateModified":"2026-09-01T18:26:44.845Z","description":"Margelo, the company behind Nitro Modules, VisionCamera, and react-native-mmkv, is joining Callstack in a deal valuing Margelo at more than €20 million. 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