I am using Nethserver’s mostly as a OpenVPN server. Our company has road warriors that come and go so we needed a way for them to connect easily and also a way to revoke easily. We will probably explore how to use Nethserver for a couple of other uses.
Another note to the Capote I am also using the Zotac Zbox CI327 Nano, however I am using Proxmox as the main system on it and I have installed Nethserver as a VM. This seems to be working well, I have only had a couple of simultaneous OpenVPN connections but they run well and do not seem to really task the VM. This could be an option for your installation.
We came to look at using Nethserver because it is opensource and community-backed which is favorable due to both price and also accessibility. I have found that sometimes when we have used support at other companies one of our team members will usually waste a half hour doing the standard steps of, please shutdown, please restart, please turn off again and leave turned off for 1 minute kind of steps, which then gets us back right to where we started. With the community approach sometimes the answer is not instant but people who are willing to help out see the error text, and can read the steps that have already been performed.
Oh well, good job and thank you to the people who work on Nethsever, it is a nice polished product and the community you are maintaining is great.