Less of a question and more of a comment

[sakrejda-umich]

rdrop2::drop_upload is limited to small-ish files (150Mb or so) but it turns out it's not that hard to add multi-part uploads using the sessions API: master...sakrejda:rdrop2:master

That branch doesn't quite follow the return conventions of the current code but it should give a pretty clear idea of the required code. I could make a more correct pull request if there's interest from the maintainers in having the multi-part upload feature. No pressure tho and thanks for the package!