;;; duet.el --- Dual-pane file commander over dirvish/dired -*- lexical-binding: t -*-

;; Author: Craig Jennings <c@cjennings.net>
;; URL: https://github.com/cjennings/duet
;; Version: 0.1.0
;; Package-Requires: ((emacs "29.1"))
;; Keywords: files, tools, convenience

;; This file is not part of GNU Emacs.

;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;;; Commentary:

;; DUET — "DUET Unifies Endpoint Trees" — is a two-pane orthodox file
;; manager (Midnight Commander / FileZilla style) built on dirvish/dired.
;; Two dired panes show any location, local or remote; single-key actions
;; on the file under point use the opposite pane as the implied target.
;;
;; Transfers route through a pluggable backend registry: rsync for
;; Unix-to-Unix (delta-transfer, faithful metadata, zero remote install),
;; rclone for cloud and the long protocol tail, lftp for FTP/FTPS/HTTP, and
;; unison for bidirectional sync.  TRAMP is the universal substrate.
;;
;; dirvish is recommended as the renderer but not required; DUET degrades to
;; plain dired.
;;
;; STATUS: pre-alpha skeleton.  See the design document for the full plan and
;; the staged roadmap.

;;; Code:

(defgroup duet nil
  "Dual-pane file commander over dirvish/dired."
  :group 'files
  :prefix "duet-")

;;;###autoload
(defun duet ()
  "Launch the DUET dual-pane file commander."
  (interactive)
  (user-error "DUET is not yet implemented — see the design document"))

(provide 'duet)
;;; duet.el ends here