A developer describes their terminal-native setup for running multiple coding agents in parallel, combining Ghostty terminal, Git worktrees, and Herdr multiplexer to manage isolated agent workspaces while maintaining remote access via iPhone.
An agent multiplexer manages multiple coding agents working in parallel, similar to how tmux manages terminal sessions. First-generation multiplexers used Git worktrees to give each agent separate working directories, while second-generation systems add sandboxed containers for isolated processes and dependencies. Ephemeral workspaces are deleted after tasks complete, with conversation history and artifacts preserved in shared storage.
Herdr Studio is a browser-based workspace for managing coding agents, terminals, and Git worktrees. It provides real terminal streaming, file inspection, and session management through a lightweight bridge that connects to local or remote Herdr servers.