@daniel.pan did you thinking about proxy cache server. We have our Seafile server in data center and using SeaDrive. I thought about create some proxy server in our office which cache used files so it can speed up SeaDrive file downloading and sync between computers. And if it’s not used for some(configured) time, it will be deleted and next download will go directly from classic server.
May I’m alone but I think some people may use it.
I don’t know background of communication so cannot create it.