.sbf in ppk porcessing with DJI P4RTK and RTKlib

Hello !!!
I’m glad to join the community

so today in my first post in the forum, I please would know if anyone already use receiver septentrio Altus NR2 .sbf file to post-process DJI P4RTK data with RTKLib.
if so it’s would be awesome to recommend a workflow or a process used .sbf file for ppk with P4RTK drone rinex.obs