Arq sounds almost ideal, except its still intended more for "backup" than "storage". Its more like an Apple Time Machine. From what I read, you can still offlo

Arq sounds almost ideal, except its still intended more for "backup" than "storage". Its more like an Apple Time Machine. From what I read, you can still offload data from your local machine by choosing to "archive" a directory. But thats an extra step and I haven't read how it handles conflicting directory that are created in the future after archiving the original.