--- title: System Design 101: What happens when your app gets popular description: The JSM Agentic Engineering Course is FINALLY LIVE! 🔥 Invest in your engineering future 🚀 https://jsm.dev/ai Check the Full Video 👉... canonical: https://daily.dev/posts/system-design-101-what-happens-when-your-app-gets-popular-tqmbdesky twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: System Design 101: What happens when your app gets popular | daily.dev og:description: The JSM Agentic Engineering Course is FINALLY LIVE! 🔥 Invest in your engineering future 🚀 https://jsm.dev/ai Check the Full Video 👉... og:url: https://daily.dev/posts/system-design-101-what-happens-when-your-app-gets-popular-tqmbdesky og:image: https://api.daily.dev/og/posts/tQMBDESKY.png og:image:alt: System Design 101: What happens when your app gets popular 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. # System Design 101: What happens when your app gets popular **[JavaScript Mastery](https://daily.dev/sources/javascriptmastery)** · 1 min read · 2 upvotes · 0 comments ## Summary The JSM Agentic Engineering Course is FINALLY LIVE! 🔥 Invest in your engineering future 🚀 https://jsm.dev/ai Check the Full Video 👉 https://jsm.dev/sys-design ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#javascript](https://daily.dev/tags/javascript) [View this post on daily.dev](https://daily.dev/posts/system-design-101-what-happens-when-your-app-gets-popular-tqmbdesky) ```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":"System Design 101: What happens when your app gets popular","url":"https://daily.dev/posts/system-design-101-what-happens-when-your-app-gets-popular-tqmbdesky","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/system-design-101-what-happens-when-your-app-gets-popular-tqmbdesky"},"datePublished":"2026-10-02T12:17:00.389Z","dateModified":"2026-10-02T14:04:08.905Z","description":"The JSM Agentic Engineering Course is FINALLY LIVE! 🔥\nInvest in your engineering future 🚀 https://jsm.dev/ai\n\nCheck the Full Video 👉...","image":"https://i.ytimg.com/vi/VWiMA9jt2UY/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/VWiMA9jt2UY/sddefault.jpg","isAccessibleForFree":true,"articleSection":"JavaScript Mastery","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"JavaScript Mastery","logo":"https://media.daily.dev/image/upload/s--i6Ls5Q5_--/f_auto/v1724338715/logos/javascriptmastery","url":"https://daily.dev/sources/javascriptmastery"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/system-design-101-what-happens-when-your-app-gets-popular-tqmbdesky","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":2},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"javascript","timeRequired":"PT1M","video":{"@type":"VideoObject","name":"System Design 101: What happens when your app gets popular","description":"The JSM Agentic Engineering Course is FINALLY LIVE! 🔥\nInvest in your engineering future 🚀 https://jsm.dev/ai\n\nCheck the Full Video 👉...","thumbnailUrl":"https://i.ytimg.com/vi/VWiMA9jt2UY/sddefault.jpg","uploadDate":"2026-10-02T12:17:00.389Z","duration":"PT1M","url":"https://api.daily.dev/r/tQMBDESKY","embedUrl":"https://www.youtube.com/embed/VWiMA9jt2UY"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"JavaScript Mastery","item":"https://daily.dev/sources/javascriptmastery"},{"@type":"ListItem","position":3,"name":"System Design 101: What happens when your app gets popular"}]} ```