Architectural Upgrade 2026-03-30: Modular Emacs, org-gtd v4.0, and PSF Phase 1

system/emacs-shell.org

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+#+TITLE: Shell Configuration
+#+PROPERTY: header-args :tangle yes
+
+* Shell
+
+** Bash completion
+
+#+begin_src elisp
+  (use-package bash-completion
+    :config
+    (require 'bash-completion)
+    (bash-completion-setup)
+    )
+#+end_src
+
+#+begin_src elisp
+(defvar shell-dynamic-complete-functions t)
+#+end_src
+
+** Eshell
+
+Add programmable bash completion to Emacs shell-mode
+#+begin_src elisp :tangle yes
+  (require 'bash-completion)
+  (add-hook 'eshell-mode-hook
+          (lambda ()
+            (add-hook 'completion-at-point-functions
+                      'bash-completion-capf-nonexclusive nil t
+                      )
+            )
+          )
+#+end_src
+
+Use colors in eshell
+#+begin_src elisp :tangle yes
+  (use-package xterm-color
+    :commands (xterm-color-filter)
+    )
+
+  (use-package eshell
+    :after xterm-color
+    :config
+    (define-key eshell-hist-mode-map (kbd "M-r") #'consult-history)
+    (add-hook 'eshell-mode-hook
+              (lambda ()
+                (setenv "TERM" "xterm-256color")))
+    (add-hook 'eshell-before-prompt-hook (setq xterm-color-preserve-properties t))
+    (add-to-list 'eshell-preoutput-filter-functions 'xterm-color-filter)
+    (setq eshell-output-filter-functions
+          (remove 'eshell-handle-ansi-color eshell-output-filter-functions)
+          )
+    )
+#+end_src
+
+Eshell completion
+#+begin_src elisp :tangle yes
+  (add-hook 'eshell-mode-hook
+          (lambda ()
+            (add-hook 'completion-at-point-functions
+                      'bash-completion-capf-nonexclusive nil t)))
+#+end_src
+
+Emulate A Terminal (EAT)
+#+begin_src elisp :tangle yes
+  (use-package eat
+    :config
+    ;; For `eat-eshell-mode'.
+    (add-hook 'eshell-load-hook #'eat-eshell-mode)
+
+    ;; For `eat-eshell-visual-command-mode'.
+    (add-hook 'eshell-load-hook #'eat-eshell-visual-command-mode)
+    )
+#+end_src