[fedora-arm] Ceph (last release) on aarch64

Hello all, I am trying to build a ceph cluster based on 4 raspberry3B+. Following the official CEPH documentation is a dead end as packages are only available for readhat/centos and not fedora ! I tried to used the el7 repository but the are conflicts and lacks with fedora repos. Did I miss something ? I am now trying to compile from sources. it is still ongoing ( 16% after 24h !) I am considering cross compilation from a X86_64 hosts but I cannot find any recent ( and probably uptodate ) documentation, any clue on that ? Thanks Fox