If privacy isn't your primary concern, and this is absolutely not private, you can also just use a redirection service and access .onion domains without installing Tor.

Just take any .onion domain and append it with .to and it should work. examplelettersblah.onion becomes examplelettersblah.onion.to and that works without needing to muck about with Tor.

This would be a horrible idea if you're concerned with privacy/anonymity. But, it'd make it easy for people to download your shared files.

That's exactly how Onionshare works. https://onionshare.org/

Never seen that before. But running a hidden service on Tor is absurdly easy, then you just shove a file server through whatever port Tor is forwarding.