Tmux

Tmux decouples your terminal session from the window. Detach, go home, SSH in, attach, and your cursor is exactly where you left it. v3.5 adds extended keys.

When to Use

• Remote Work: Mandatory for SSH. If connection drops, your run continues.
• Pair Programming: Two users can attach to the same session.
• Layouts: Run Editor, Server, and Logs in one window.

Core Concepts

Session / Window / Pane

Hierarchy: Session > Windows (Tabs) > Panes (Splits).

Prefix Key

Default Ctrl+b. Most users remap to Ctrl+a.