Once you get to N = >10 devices, and expect some degree of decentralized communication between them you find yourself maintaining N^2 entries. Every change to the set of public keys, require you updating N entries. Things get worse once you want consistent rules on what-device-should-access-what.
I initially used WireGuard, but as my home lab scaled, it became unwieldy. Some people could work around these limitations with bash scripts, but if you have an heterogeneous environment (esp iOS clients), making programmatic configuration changes to WireGuard becomes trickier.
Today I use Tailscale (with Headscale as the control plane) for all users, and WireGuard as a emergency access to key servers.
I initially used WireGuard, but as my home lab scaled, it became unwieldy. Some people could work around these limitations with bash scripts, but if you have an heterogeneous environment (esp iOS clients), making programmatic configuration changes to WireGuard becomes trickier.
Today I use Tailscale (with Headscale as the control plane) for all users, and WireGuard as a emergency access to key servers.