diff --git a/config.fish b/config.fish
index 58857de..1054f75 100644
--- a/config.fish
+++ b/config.fish
@@ -116,10 +116,15 @@ set -gx SUDO_EDITOR $EDITOR
 set -gx GPG_TTY (tty)
 
 #   ────────────────────────── Scrollback History ──────────────────────────
-#   Directory where scrollback history is saved into log files.
-set -gx SCROLLBACK_HISTORY_DIR "$HOME/.terminal_history"
-#   Maximum number of scrollback history files to keep
-set -gx SCROLLBACK_HISTORY_MAX_FILES 100
+#   fish-style source of truth (editable via config-settings); exported for the
+#   POSIX wrappers (paru/yay/tmux/zellij/_prune_terminal_logs) that read them.
+set -q __fish_scrollback_history_dir
+or set -g __fish_scrollback_history_dir "$HOME/.terminal_history"
+set -gx SCROLLBACK_HISTORY_DIR $__fish_scrollback_history_dir
+
+set -q __fish_scrollback_history_max_files
+or set -g __fish_scrollback_history_max_files 100
+set -gx SCROLLBACK_HISTORY_MAX_FILES $__fish_scrollback_history_max_files
 # Wire up a clean exit function that won't fire on background subshells
 # Replacing the exit builtin is opinionated (C3 overrides); smart_exit also
 # guards itself so a live toggle takes effect without restarting the shell.