I am new to this and would like to use Tailscale instead of quickconnect for added security. I have admin access to all the 3x Synology NAS as well as the routers. My question is, would this work for a personal (free) plan of tailscale or at most the personal pro plan? (note: my brother/sister wont login to their NAS as they arent that techy. I will just map a network folder on their PC where they will save their files/photos). NAS A, NAS B, NAS C all have to connect with each other using tailscale to be able to sync right? Can all 3x NAS use my login all at the same time to connect 24/7 ? I would like to access all NAS via my desktop/laptop too. If this doesn’t work on the free plan or personal pro then I guess ill just look into using Openvpn.
PS - do i need 3x subnets for this as they are from 3x locations with 3x routers? I dont plan to connect to any other devices in the 3x networks though other than the 3x NAS.