boxes(1) on Linux
The text 74080941554b, as Debian 12 (Bookworm) shipped it.
text mode box and comment drawing filter
Flags it lists
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--help -
-a -
-c -
-d -
-e -
-f -
-h -
-i -
-k -
-l -
-m -
-n -
-p -
-q -
-r -
-s -
-t -
-v