sme
As the project grows, having all documentation in the README file is not helpful at all. Time to move it to RTD.
... as far as possible / reasonable.
Current implementation is not robust enough, should use [shlex.quote](https://docs.python.org/3/library/shlex.html#shlex.quote) instead. ZFS is rather flexible in terms of what it allows in dataset and snapshot names.
A custom property namespace on the target side could hold this information.