open .sba file with Rnote

[kesu33]

Please submit only one feature request in one issue!
is it possible to open a file .sba format which is the file fomat saved in saber software.\
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Is your feature request related to a problem? Please describe.
want to open, edit .sba file .

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Describe alternatives you've considered

Additional context

[Doublonmousse]

Supporting an import from .sba files and to .sba file would probably be the best case scenario (a 100% support of the file format in edit mode may not always be feasible, especially if there are some structures that can't be mapped between the two applications, maybe coming from a difference of features). So it's safer to do that than supporting editing directly the file, so that you don't lose information or data from an incomplete import/export implementation.

The file format in itself (.sba) is a zip of binary file (of .sbn2 format), where the latter is obtained from a json -> binary conversion. I'd rather deal with the .sbn filetype of saber (which is a json file, not the binary version of it) but saber doesn't let you export this format.

The file format may be unstable as well (that means new file versions from saber probably won't work until we update the parser if we implement this, so more dev work to keep it working overall, hence it may be better to wait a little for the file format to stabilize).

Overall I'd like to have better interoperability between notes applications as well, but I'm not sure that doing import/export compatibility layers between applications (for each filetype/application) is necessarily the way to go. In this case it's doable (as the code is OSS), but I feel like agreeing on a exchange file format (both available at export and for any selection that's copied to the clipboard) for exchange (inkml ? WILL if the license permits it ?) would be a better way to go generally.