SlackBuildsOrg/network/onionshare
..
onionshare.info
onionshare.SlackBuild
README
slack-desc

OnionShare lets you securely and anonymously send and receive files.
It works by starting a web server, making it accessible as a Tor
onion service, and generating an unguessable web address so others can
download files from you, or upload files to you. It does not require
setting up a separate server or using a third party file-sharing
service.

It also requires obfs4proxy (or others e.g. meek) if tor bridge is used.

It has templates of torrc which can be found in /usr/share/onionshare/.