[Q] Sync data to server other than Google

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I was wondering if it was possible to change the server that Android uses to sync data under Settings->Accounts and sync. I would like to have it sync stuff in the same manner, but to a server other than Google's. Would it be possible to change some line in the OS files to a different server, or is there a special way that the Google servers respond to a sync request that could not be mimicked with your own server?

I do know that there are other apps to allow you to sync data between your device and computer. I am just trying to change where the data is synced to.

Just wondering...
Thanks in advance!