This is a bit off-topic, but I wanted to point out that this 30-day grace period is not true for 2.0 Roon Core. 2.0 requires internet access, regardless of whether you use ARC or not. If you need the Core to have offline access, you must say on 1.8 Legacy.
Brian is typing a response to the OP, so I’ll let him answer the on-topic question 