Y Combinator

Y Combinator · Launch Video Breakdown: Hook, Pacing & Motion Design

Limrun (@limrun) provides the infrastructure to leverage your favorite cloud agents for mobile development too. Today, we provide remote XCode, IOS & Android Simulators to Replit, Rork, Momenti…

Developer ToolsLaunchMay 21, 2026@ycombinator
0:00 · The Hook · Title Card
0:00 / 0:00

Scene-by-scene timeline & spoken transcript

  1. The Hook

    Title Card

    “(No spoken dialogue — ambient bass sweep)”

    On screen
    Unlock cloud agents for mobile dev teams [lim.run]
    Camera
    Static graphic with subtle ambient glow drift
    Motion
    Text fade-in over dark gradient background
  2. The Hook

    Founder Introduction

    “We let your coding agent build mobile apps while you sleep.”

    On screen
    Muvaffak Onuş Founder of [lim.run]
    Camera
    Static medium shot
    Motion
    Lower-third typography fade over live-action video
  3. Problem Agitation

    Current Agent Workflow

    “Today, coding agents take issues from Linear, spin up a virtual machine, build the feature, and ship a tested PR.”

    On screen
    LIM > New Issue Rewrite Bun in Rust Make no mistakes. Backlog Priority Assignee Muvaffak ... Cursor Bun Labels Create issue Jared Sumner commented last week #30412 Merged
    Camera
    Smooth pan and zoom across UI cards
    Motion
    UI mockups sliding and transitioning on dark canvas
  4. Problem Agitation

    Mobile Environment Bottleneck

    “But not every product can be built in virtual machines. iOS needs Xcode, Android needs emulator, games need Unity.”

    On screen
    Sandbox Thinking ... Full build/run not possible - this native iOS app requires macOS + Xcode + iOS simulator. I need an Android emulator to test this app. This game requires Unity environment.
    Camera
    Static frame with sequential callout pop-ins
    Motion
    Terminal console log animations and orange warning callouts
  5. Product Reveal

    Closing the Gap

    “We built Limrun to close this gap.”

    On screen
    (No on-screen text)
    Camera
    Static medium shot of founder
    Motion
    Direct-to-camera presenter transition
  6. Feature Teaser

    Sub-Second Xcode Builds & Browser Simulators

    “With Limrun, your agent can trigger an Xcode build from any sandbox in under a second. Then it launches a simulator to test and record a demo video for you to review. And finally, it drops a preview link that opens your app inside our in-browser simulator.”

    On screen
    Build the app with lim Thought for 10 seconds Script gameplay taps to minimum size Speedy Circles Start Demo video: speedy-circles-demo.mp4 Preview iOS 8b81ba0 Open Simulator Preview Install to Device
    Camera
    Side-by-side UI view with interactive device frame preview
    Motion
    Code execution logs synced with live interactive phone emulator
  7. Feature Teaser

    Platform Integrations in Action

    “Today, we power mobile app previews for Replit users and agents. Rork Max builds native Swift apps and lets its users preview them in the browser.”

    On screen
    replit New chat with Agent Simple 3D Car Game Rork Max builds native Swift apps and lets its users preview them in the browser.
    Camera
    Split screen agent interface and running iOS game viewport
    Motion
    Screen captures showing web IDEs connected to live simulators
  8. Feature Teaser

    Social Proof & 1M Minutes Milestone

    “As more and more agentic companies are building on Limrun, we blew past our record of 1 million minutes streamed in a single day.”

    On screen
    vibecode mobilerun replit Rork Momentic minitap Michele Catasta @micat Hundreds of thousands of you unleashed your creativity on Replit Agent this weekend... 87k min 885k minutes +1M minutes
    Camera
    Logo cloud drift followed by kinetic metric odometer counter
    Motion
    Spring pop-in logos, X post floating card, and ascending animated numerals
  9. Feature Teaser

    Universal Cloud Agent Support

    “And today, we're opening it up to every company with a mobile app. You can extend your favorite cloud agent like Cursor Cloud, Devin AI, or your custom sandboxes into a real mobile dev environment.”

    On screen
    CURSOR Devin Google Cloud Daytona aws docker E2B
    Camera
    Static medium shot with floating orbiting badge elements
    Motion
    Floating icon pill badges populating around speaker
  10. Call to Action

    Outro & Website

    “Let your mobile developers cook, too.”

    On screen
    Book a demo at lim.run
    Camera
    Static graphic card
    Motion
    Typography fade on dark mesh background
  11. Call to Action

    Humorous Stinger

    “Having a hard time getting a Mac Mini? Can't imagine why.”

    On screen
    (No on-screen text)
    Camera
    Static medium shot
    Motion
    Founder holding a Mac Mini against a wall stacked high with Mac Mini boxes

Related Developer Tools Product Launches

Explore all Developer Tools launches →
SpaceXAI
Hook 8.9204.0M
SpaceXAIDeveloper Tools

xAI opens voice cloning on its API: build a custom voice in about two minutes or pick from 80+ voices in 28 languages.

@SpaceXAI
Claude
Hook 9.178.3M
ClaudeDeveloper Tools

Claude can now operate your Mac, opening apps, browsing and filling spreadsheets, as a research preview in Cowork and Claude Code.

@claudeai
xAI
Hook 8.873.2M
xAIDeveloper Tools

Agentic CLI for coding, building apps, and automating workflows.

@SpaceXAI