So I have a TrueNAS server set up at home, and it would be cool to have access to it at all times. I currently have Syncthing set up to access and back up my most essential files on my phone and laptop, but it would be nice to be able to access all the … legally obtained files I have stored there wherever I go. I looked into Nextcloud, but that requires paying for a domain. So are there any other options for this?
Absolutely Tailscale - I use it for this exact situation of Syncthing from my NAS. Simple to set up, and secure.
Adding to this, Tailscale’s clients are open source and there’s a community-developed open source control server component called Headscale that can replace the Tailscale’s central server if and when needed. I tested it recently and it seemed to work fine.