docs update

docs/_not_used/loop_test.sh

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+#!/bin/bash
+
+# Define the source folder
+source_folder="20231228_201550_pt"
+
+# Define the number of copies you want to make
+number_of_copies=40
+
+# Loop and copy the folder into c1, c2, c3, c4, ...
+for i in $(seq 1 $number_of_copies); do
+  cp -r "$source_folder" "c$i"
+  btrfstune -m "c$i/tiles.btrfs"
+done