Just plugging tour phone in (eg. with the charging cable) will do the trick, though on Apple-hardware, you'll need to install OpenMTP (https://github.com/ganesh

Just plugging tour phone in (eg. with the charging cable) will do the trick, though on Apple-hardware, you'll need to install OpenMTP (https://github.com/ganeshrvel/openmtp https://github.com/ganeshrvel/openmtp) or somesuch. If you meant more freely aharing than that: apologies, misunderstood. But isn't that the problem Dropbox solved?