Netgear D7000 v1 why not modem less?

Hi , i like resurrect my old netgear d7000 v1 with openwrt without modem. is possible? is compatible with r7000 firmware?

i have found this:

https://www.downloads.netgear.com/files/GPL/D7000_V1.0.1.84_1.0.1_GPL.tgz

https://kb.netgear.com/2649/NETGEAR-Open-Source-Code-for-Programmers-GPL

Device support only appears, if someone with the device on their desk cares enough to do the necessary development work to get it supported and then submits their changes to the OpenWrt project - it doesn't materialize out of thin air.

Ok thanks! I am ready to make him and sell the firmware! see you