RTMP Server nginx on AX3000 splitz

is there a nginx-rtmp module available for ax3000 splitz?

It’s doubtful.

root@slateax:~# opkg list | grep -e rtmp
freeswitch-mod-rtmp - 1.10.7-1 - RTMP endpoint support. Allows FreeSWITCH to be used from RTMP clients.

You may have to add some custom feeds to pull it directly fr the OpenWrt servers.

f/w 4.4.6-release1, OWRT 21.02