7MS #603: Monitoring Your Tailscale Network with Uptime Kuma

Today I look at potentially replacing Splashtop and UptimeRobot (check out our episode about it here) with Tailscale and Uptime Kuma. The missing link (which I'd love some help with) is answering this security question: how can I setup Tailscale so that my 7MinSec testing box can connect to all these NUCs spread around the globe, but those NUCs cannot connect to each other (in case one is compromised)? Got some ideas? Let me know please!