Make tmux session binding editable slots

modules/cli/tools/tmux-sessionizer.sh

@@ -1,10 +1,35 @@
 #!/usr/bin/env bash
 
-if [[ $# -eq 1 ]]; then
-	selected=$1
-else
-	selected=$(find ~/projects ~/work -mindepth 1 -maxdepth 1 -type d | fzf)
-fi
+slots_dir="${XDG_DATA_HOME:-$HOME/.local/share}/tmux-sessionizer/slots"
+
+pick_project() {
+	find ~/projects ~/work -mindepth 1 -maxdepth 1 -type d | fzf
+}
+
+case "$1" in
+	--slot)
+		slot_file="$slots_dir/$2"
+		if [[ -s "$slot_file" ]]; then
+			selected=$(<"$slot_file")
+		else
+			tmux display-message "tmux-sessionizer: slot '$2' is unbound (use prefix + C-${2^^} to set it)"
+			exit 0
+		fi
+		;;
+	--set)
+		selected=$(pick_project)
+		[[ -z $selected ]] && exit 0
+		mkdir -p "$slots_dir"
+		printf '%s\n' "$selected" > "$slots_dir/$2"
+		tmux display-message "tmux-sessionizer: bound slot '$2' -> $selected"
+		;;
+	"")
+		selected=$(pick_project)
+		;;
+	*)
+		selected=$1
+		;;
+esac
 
 if [[ -z $selected ]]; then
 	exit 0

modules/cli/tools/tmux.nix

@@ -49,10 +49,16 @@
         bind-key -T copy-mode-vi ] send-keys -X next-prompt
 
         bind-key f run-shell "tmux neww tmux-sessionizer"
-        bind-key C-h run-shell "tmux-sessionizer ~/projects/kyoo"
-        bind-key C-t run-shell "tmux-sessionizer ~/projects/snow"
-        bind-key C-s run-shell "tmux-sessionizer ~/projects/flake"
-        bind-key C-n run-shell "tmux-sessionizer ~/projects/blog"
+        # Jump to the project bound to each slot (per-host, stored on disk).
+        bind-key C-h run-shell "tmux-sessionizer --slot h"
+        bind-key C-t run-shell "tmux-sessionizer --slot t"
+        bind-key C-s run-shell "tmux-sessionizer --slot s"
+        bind-key C-n run-shell "tmux-sessionizer --slot n"
+        # Bind a slot: pick a project via fzf, then C-<key> jumps to it.
+        bind-key C-H run-shell "tmux neww tmux-sessionizer --set h"
+        bind-key C-T run-shell "tmux neww tmux-sessionizer --set t"
+        bind-key C-S run-shell "tmux neww tmux-sessionizer --set s"
+        bind-key C-N run-shell "tmux neww tmux-sessionizer --set n"
 
         # suspend inner tmux (to allow nested sessions)
         bind @ { set prefix None; set key-table off }