Step by step to install Minimserver 2 to Synology DS214+

[simoncn]

If you are running MinimServer on a single Synology, this is one device. From the description in your post, it sounds like the iMac is not involved in this.

If you are using the MinimServer default settings (Starter Edition), no license purchase is necessary. The additional features that are enabled by a license purchase are described on this page.