One developer, four months, 25,000 GitHub stars — and now Herdr is joining Y Combinator's F26 batch. It's basically tmux for coding agents: a place to run Claude Code, Codex, Cursor, and similar tools, then park them in the background, switch between them, and check on their status. Close your terminal or drop your SSH connection, and the agents keep running. Plain tmux only manages terminals. Herdr knows which agent is actually working, which one is waiting for your reply, and which one is already done. Agents can even message each other and wait for each other to finish. As developers start running more and more coding agents...