$ wget -O /tmp/asuswrt-merlin-xrayui.tar.gz https://github.com/DanielLavrushin/asuswrt-merlin-xrayui/releases/latest/download/asuswrt-merlin-xrayui.tar.gz && rm -rf /jffs/addons/xrayui && tar -xzf /tmp/asuswrt-merlin-xrayui.tar.gz -C /jffs/addons && mv /jffs/addons/xrayui/xrayui /jffs/scripts/xrayui && chmod 0777 /jffs/scripts/xrayui && sh /jffs/scripts/xrayui install

$ openssl req -x509 -keyout /etc/ssl/certs/3x-ui.key -out /etc/ssl/certs/3x-ui.pem -newkey rsa:4096 -sha256 -days 3650 -nodes -new
$ openssl x509 -noout -sha256 -fingerprint -in /etc/ssl/certs/3x-ui.pem

$ bash <(curl -Ls https://raw.githubusercontent.com/mhsanaei/3x-ui/master/install.sh)