Cognition Brings On the Dioxus Team, Keeping 4 Open Source Projects Under Devin's Wing

Cognition, the company that makes the AI engineer Devin, has hired Jonathan Kelly and the entire Dioxus team. Four open source projects stay under Cognition's wing: Dioxus, Blitz, Taffy and Subsecond. The company promises to invest more in Dioxus-Native and Blitz. The announcement does not disclose the financial terms of the deal.

What we know about the deal

According to Cognition, Dioxus was created to simplify app development and to let small teams ship ambitious products on several platforms at once. Cognition itself relied heavily on Dioxus when building Devin and optimizing its performance. Once the two teams got to know each other, it became clear they were a good fit.

The announcement's open source commitments are specific. Support for Dioxus, Blitz, Taffy and Subsecond will continue. Dioxus-Native and Blitz are singled out: investment in them will grow. Cognition also expects Devin to help speed up development of the Dioxus platform itself. That creates a closed loop: a tool helps write the code of the framework it is built on.

Why Cognition wants its own UI platform

Dioxus is a Rust framework for building interfaces. It lets developers make web, desktop and mobile apps from a single codebase. Blitz, according to the projects' documentation, handles native rendering of web markup and styles without a full browser engine. Taffy is a library for calculating element layout, and Subsecond is a technology for hot-patching code on the fly.

For a product like Devin, this is an important set of tools. An agent that runs in a virtual machine, sees the screen and controls the interface depends on rendering speed, fast iteration and predictable UI behavior. If you own the whole stack, from rendering to layout, you can optimize things you would have to put up with in someone else's framework. In its announcement, Cognition explicitly names Devin's performance as one of the reasons the team already relied on Dioxus.

What Devin gets

The Dioxus team will not limit itself to maintaining its own repositories. Cognition writes that the engineers will bring their experience in application development and systems engineering into Devin itself. Three areas are named:

• Devin's virtual machine;
• computer use skills, meaning the agent's work with a graphical interface;
• testing capabilities.

These are typical bottlenecks for coding agents. The more stable the execution environment and the more accurately the agent works with the interface, the fewer failures it has on real tasks. And testing determines whether a result can be trusted without manual review.

Key facts

• Buyer: Cognition, the developer of Devin.
• Team: Dioxus, led by Jonathan Kelly.
• Projects promised continued support: Dioxus, Blitz, Taffy, Subsecond (4 in total).
• Increased investment: Dioxus-Native and Blitz.
• Tasks inside Devin: VM, computer use, testing.
• Deal terms: not disclosed.

What Dioxus users should check

If you build on Dioxus, Blitz or Taffy, the signal is broadly positive: the projects now have a corporate sponsor that itself depends on them in production. But the announcement shows no roadmap, no timelines and no changes to project governance. Keep an eye on the repositories for the license, the list of maintainers and release frequency over the coming months.

For those choosing a cross-platform stack, Dioxus-Native and Blitz will be the main indicator. If investment does grow, native rendering in Rust will mature faster to the point where it can be considered an alternative to web wrappers.

For those following the agent market, the takeaway is simpler. Cognition is buying engineering expertise in the layers where an agent meets a real system: the virtual machine, the screen and tests. The result can be judged by Devin's updates over the coming months.