NFS on 18.06.2 - can't find nfsd

I have two linux clients that I would like to backup to the USB drive on my Netgear R8000. NFS seemed like the logical choice. The OpenWrt doc I'm following is NFS Network File System share configuration (aka Linux/Unix file sharing).

Here's what is available via opkg

root@OpenWrt:/usr/sbin# opkg list | grep nfs
kmod-fs-nfs - 4.14.95-1 - Kernel module for NFS client support
kmod-fs-nfs-common - 4.14.95-1 - Common NFS filesystem modules
kmod-fs-nfs-common-rpcsec - 4.14.95-1 - Kernel modules for NFS Secure RPC
kmod-fs-nfs-v3 - 4.14.95-1 - Kernel module for NFS v3 client support
kmod-fs-nfs-v4 - 4.14.95-1 - Kernel module for NFS v4 support
kmod-fs-nfsd - 4.14.95-1 - Kernel module for NFS kernel server support

Installed on my router (in addition to portmap)

root@OpenWrt:/usr/sbin# opkg list-installed | grep nfs
kmod-fs-nfs - 4.14.95-1
kmod-fs-nfs-common - 4.14.95-1
kmod-fs-nfs-common-rpcsec - 4.14.95-1
kmod-fs-nfs-v4 - 4.14.95-1
kmod-fs-nfsd - 4.14.95-1

There doesn't seem to be a nfsd executable installed or available to install. Am I missing something? Was NFS support removed in the current stable release? If so, what's a good recommendation for letting my linux clients mount the NAS drive?

Known issue, either use snapshots or compile your own firmware

Thanks for the info.

Dang, I thought I did a pretty thorough search and didn't come across this known issue. Is there another source I should be looking at when I research problems I run across?

Unfortunately not at the moment