https://xtreemfs.org/ -> later the authors founded quobyte

https://github.com/chrislusf/seaweedfs?tab=readme-ov-file#quick-start

https://github.com/baidu/bfs -> apparently an early attempt by them

https://github.com/deepseek-ai/3FS !!!

https://github.com/XTXMarkets/ternfs no i donno who they are

https://www.orangefs.org/ -> related to PVFS

and then theres tahoe and moose i suppose. and lizard.
and lustre. and beegfs. and gluster. and yes ceph.
oh shucks theres a mogilefs.
ocfs2? does this count? ->https://sourceware.org/cluster/gfs/
no i dont think openafs..
and hmmm who are these people what are they up to? https://github.com/cubefs/cubefs