Setting up tailscale. Any tips?

As the titles says. I’m trying to set up tailscale so I can access my media library wherever. By UGREEN obviously doesn’t have it in their app center.

Tutorials I’ve found are mostly people either saying installing it through docker sucks, or using something like PuTTY which doesn’t want to connect to my Nas for some reason.

Any advice before I try taking this further and risk doing anything silly?