When a global retail client needed 127 reusable marketing widgets deployed across 14 regional sites in 6 weeks, their engineering team hit a wall: Vue 3.4’s composable reuse overhead added 140ms of per-widget init latency, while early Svelte 5.0 betas cut that to 22ms — but introduced breaking changes in slot reuse that cost 3 days of debugging. This is the definitive, benchmark-backed breakdown of Vue 3.5 and Svelte 5.0 for teams building 100+ marketing widgets at scale. 🔴 Live Ecosystem Stats ⭐ vuejs/core — 39,217 stars, 7,124 forks 📦 vue — 21,347,892 downloads last month ⭐ sveltejs/svelte — 86,447 stars, 4,898 forks 📦 svelte — 18,085,057 downloads last month Data pulled live from GitHub and npm as of October 2024. 📡 Hacker News Top Stories Right Now Rivian allows you to disable all internet connectivity (470 points) How Mark Klein told the EFF about Room 641A [book excerpt] (421 points) Opus 4.7 knows the real Kelsey (136 points) CopyFail was not disclosed to distro developers?…