Where can I get relayd package for my Netgear R6220 router?

I am looking to download the relayd package for my Netgear Router and since it doesn't have any internet connection, I am unable to download it via web interface. The OpenWRT version I am using for my router is : openwrt-19.07.6-ramips-mt7621-r6220-squashfs-factory

why don't give it access via wan or wifi ?