Herdr is no longer limited to building an Agent version of tmux; its new desktop client enables AI to independently modify its interfaces and features.

Beating AI Express: Herdr, a terminal manager originally designed for AI programming tools and positioned as an Agent version of tmux, has launched two new open-source projects: the brand-new herdr-core runtime and a native desktop app built on it. Developers can run multiple Claude Code and Codex instances simultaneously, track task progress, enable Agents to assign work to each other and retrieve results. Background tasks will continue running even after the terminal window is closed. The herdr-core redevelops the background capabilities previously integrated into the terminal tool into an independent service, offering standardized interfaces. Developers can use it to directly run and schedule Agents, or build their own desktop or mobile apps without adapting to the original TUI architecture. It also adds an independent terminal holding process: as long as this process is active, ongoing tasks will not be interrupted even if the core itself crashes or is updated. The accompanying desktop app lets users edit interface layouts, shortcuts, and function panels via local files. For example, to move Agents waiting for approval to the right side, or add a runtime timer to each task, users only need to instruct Codex to modify the corresponding layout or JavaScript file; the interface updates automatically after saving, no software recompilation required. The legacy Herdr TUI will remain maintained, though it does not share active tasks with the new core for now. All three projects are released under the Apache 2.0 open-source license.