Install ediprolog, enable dired-dwim-target.

.config.d/05-basic.el

@@ -108,4 +108,9 @@
 (keymap-global-set "C-c l" 'compile)
 (keymap-global-set "C-c C-l" 'recompile)
 
+;; When set to true, dired will try to guess the target directory. Use this by
+;; first splitting the window in two, selecting the destination in a new buffer,
+;; and use 'C' to copy the file/directory.
+(setq dired-dwim-target t)
+
 ;;; 05-basic.el ends here

.config.d/15-lsp.el

@@ -33,6 +33,8 @@
   :defer t
   :commands (rust-mode))
 
+(add-hook 'rust-mode-hook #'eglot-ensure)
+
 ;; This package provides integration with Prolog (SWI).
 (use-package sweeprolog
   :straight (sweeprolog :type git
@@ -47,10 +49,24 @@
   :commands (sweeprolog-mode
 	     sweeprolog-top-level)
   :init
-  (setq sweeprolog-swipl-path "swipl")
-  (add-to-list 'auto-mode-alist '("\\.plt?\\'"  . sweeprolog-mode)))
+  (setq sweeprolog-swipl-path "swipl"))
 
-(add-hook 'rust-mode-hook #'eglot-ensure)
+
+;; This package provides integration with Prolog (scryer) Note that editing
+;; prolog is supported through built-in prolog-mode, this only allows actually
+;; consulting prolog from within emacs.
+(use-package ediprolog
+  :ensure t
+  :defer t
+  :commands (prolog-mode)
+  :init
+  (setq ediprolog-program "systemd-run")
+  (setq ediprolog-program-switches '("--user" "--scope" "-p" "MemoryMax=2G" "-p" "MemoryHigh=1.9G" "scryer-prolog")))
+
+(with-eval-after-load "prolog"
+  (bind-key "C-c C-e" #'ediprolog-dwim prolog-mode-map))
+
+(add-to-list 'auto-mode-alist '("\\.plt?\\'"  . prolog-mode))
 
 ;; Nix language
 (use-package nix-mode