Firmware build tools for my routers
curl https://raw.githubusercontent.com/uAltair/Routers/master/mir3g/Dockerfile
docker build -t ualtair/mir3g .
docker run -it --user build --name mir3g ualtair/mir3g
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin make -j$(($(nproc)+1)) V=s ; echo -e '\a'
docker cp mir3g:/home/build/openwrt/bin/targets/ramips/mt7621 s:/DockerDesktop/img