Building with Bun and Cosmic: The Fastest JavaScript Stack in 2026
Bun v1.3 is highlighted as the fastest JavaScript runtime available, particularly for content-heavy applications. When combined with Cosmic's REST API, developers can achieve rapid content delivery and improved performance metrics. This article serves as a practical tutorial for setting up a Bun project with Cosmic, showcasing its advantages in speed and efficiency.
- ▪Bun v1.3 is the fastest JavaScript runtime, with significant improvements in package installation and startup times.
- ▪Cosmic's REST API provides content in under 100ms, making it an ideal content layer for Bun applications.
- ▪The combination of Bun and Cosmic allows developers to build applications without the need for complex configurations or additional tooling.
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 36636) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Tony Spiro Posted on May 30 • Originally published at cosmicjs.com Building with Bun and Cosmic: The Fastest JavaScript Stack in 2026 #javascript #bunjs #webdev #api Originally published on the Cosmic blog. Bun v1.3 is the fastest JavaScript runtime you can use right now. Cosmic's REST API returns content in under 100ms. Put them together and you get a full-stack setup that's faster at every layer: cold starts, package installation, HTTP requests, and content delivery.
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