curl -fsSL https://sing-box.app/gpg.key -o /etc/apt/keyrings/sagernet.asc chmod a+r /etc/apt/keyrings/sagernet.asc echo "deb [arch=`dpkg --print-architecture` signed-by=/etc/apt/keyrings/sagernet.asc] https://mirrors.china.12306.work/repository/sb/ * *" | tee /etc/apt/sources.list.d/sb.list apt-get update apt-get install sing-box