add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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#!/bin/sh
export GDK_USE_XFT=1
export LANG="en_US.UTF-8"
export LC_ALL="en_US.UTF-8"
/usr/bin/X11/rxvt -bg black -fg gray90 &
exec /bin/metacity