checout openwrt 23 branch

download this scipts
https://gitlab.com/librerouter/librerouteros/-/blob/ci-improvements/scripts/librerouteros_build.sh?ref_type=heads
https://gitlab.com/librerouter/librerouteros/-/blob/ci-improvements/scripts/kconfig-utils.sh?ref_type=heads

download this package
https://gitlab.com/librerouter/librerouteros/-/tree/ci-improvements/package/system/librerouter-hw?ref_type=heads

put the scripts in the scripts folder and the package in the package/system/ folder

run librerouteros_build librerouter-v1