01
A gateway at each site, on hardware you already own.
Install the gateway on any small Linux box or VM at the location: Ubuntu 22.04 or 24.04 LTS, Debian 12, or as a Docker container on x86_64 and ARM64. It only makes outbound connections, so there are no inbound ports to open on the store router and no public IP required.
$ curl -fsSL https://get.netsecurelabs.xyz/gw | sudo shnsm-gateway 2.4 installed$ sudo nsm-gateway join --site fresno-03 --token ********WireGuard keypair generated on deviceAdvertising 10.43.0.0/24 (pos), 10.43.8.0/24 (cameras)Connected to 12 sites, median latency 18 ms