Cua shipped something developers have wanted for ages. Their open-source driver lets AI agents control macOS apps in the background. Agents click, type, and verify without stealing your cursor. You keep working. The project hit Hacker News this week and people noticed.
Even tricky surfaces like Chromium and canvas tools like Figma work.
Behind the driver, Cua is assembling the rest of the stack, similar to Mozilla's Thunderbolt. Their sandbox SDKs give agents one API across Linux, macOS, Windows, and Android, an approach seen in Bhatti. CuaBot lets you pair with an agent on a shared desktop. They've got benchmarking covered, plus near-native virtualization on Apple Silicon through Lume.
Hacker News commenters raised a fair objection. These background automation tricks are workarounds. Apple hasn't built native support for agent interactions, so developers hack around it. Cua knows this. They're shipping now because agents can't wait for Apple to catch up.