hello , i found a quite stable solution (after even testing mac os server 10.6.8) by using the *nfs* option provided by kodi
all i had to do was to use terminal in mac osx 10.6 according to this post
NFS exports and Mac OS X 10.5 Leopard – revolution34
i just created this file
/etc/exports
and inserted something like
/Users/test/Movies -maproot=test
or other directions and after updating the whole as suggested by the article with
sudo nfsd checkexports
and
sudo nfsd update
the nfs share was active after short time.
the trick that did it on my computer was to leave away the last part *
-network 10.0.0.0 -mask 255.255.0.0*
it seems most stable and accessible also after changing from one raspberry to another etc., finally withouth the need to restart anything on the mac-serverside.
don't know however if i created a big hole security-wise.