For years, the Deno team worked to simplify server software. They questioned how modules should be distributed, what security guarantees a JavaScript runtime could provide, what belonged in a complete toolchain, and how easily an application could ship as a standalone executable. Compatibility with Node.js also became central, since users wanted Deno's improvements while still plugging into the existing JavaScript ecosystem.
Today the entire Deno team is joining Cloudflare to take that work further. The ambition has always extended beyond the runtime: compute, storage, and communication working together, without every application assembling its own infrastructure. Deno Deploy was a step toward that goal, but operating it revealed how much complexity remained underneath. That led to celld, which builds on the Cloudflare Workers programming model so developers can build distributed applications from the start, with scaling built into the model rather than assembled by each app.
At Cloudflare, the team will combine its work with the Workers and Durable Objects teams, aiming to make this model the default way to build servers, on Cloudflare's network or on private infrastructure. The team will put future development into this shared platform rather than a separate runtime and hosting service. For existing users, Deno runtime will receive monthly bug-fix and security releases for another year before development ends, though it will remain open source. Deno Deploy will run for six months before shutting down, with migration support for paying customers moving to Cloudflare Workers. JSR will continue operating on Cloudflare's infrastructure, and rusty_v8 support will continue as it moves toward integration with workerd.
Durable Objects are especially relevant to AI agents, offering inexpensive serverless execution, persistent state, WebSockets, and a high-level JavaScript interface. Developers building agents at scale who want to run them on their own infrastructure can contact ry@cloudflare.com.
Source: Hacker News · Summarized by HeadlinesBriefing