cmux-config Single entry point for editing a user's cmux configuration in (JSONC). The app watches the file; saving applies changes immediately, no restart. Legacy is read only as a fallback for keys absent from . Three areas, each with a reference: - Settings — typed preferences under , , , , , , , , . See the helper below and references/all-keys.md / references/shortcut-actions.md. - Customization — structural config: , , (plus-button click + context menu), , , . See references/customize.md. - Workspace groups — collapsible anchor-owned sidebar sections via the CLI / socket API and config.…