I’ve heard conflicting info regarding the maximum size for an SD card in one of these. Can you confirm or deny if it can take a 1TB card? If so, it really sounds like the perfect device.

There’s a guide for switching to Wireguard. Yams also includes a command:

yams check-vpn

that tells you if the VPN is working.

Not sure if that directly answers your question but there are a lot of step-by-step guides on the site and the author has also answered a lot of user questions on the message board.

Yams.media is a script with an easy to follow guide that will hold your hand through the entire setup. All you need to do afterwards is import your existing media using radarr/sonarr.