Zerotier dont install,

Someone has installed zerotier in openwrt, it tells me that the kernel version is incompatible. Would anyone know how to do it?

You can not install all the packages from the OpenWrt repository, as the kernel version of the ChirpStack Gateway OS doesn’t exactly match the version of OpenWrt. That is why you are seeing this error. Best option would be to build a custom image. For instructions see: