test: setting up opencloud and microvms

systems/eris/config/networking.nix

@@ -7,6 +7,40 @@ let
   inherit (flake.config.machines.devices) eris;
 in
 {
+
+  microvm.host.enable = true;
+
+  systemd.network = {
+    enable = true;
+    netdevs."10-br-vms" = {
+      netdevConfig = {
+        Name = "br-vms";
+        Kind = "bridge";
+      };
+    };
+
+    networks = {
+      "20-lan" = {
+        matchConfig.Name = [
+          "enp10s0"
+          "vm-*"
+        ];
+        networkConfig = {
+          Bridge = "br-vms";
+        };
+      };
+      "30-br-vms" = {
+        matchConfig.Name = "br-vms";
+        networkConfig = {
+          Address = "192.168.50.245/24";
+          Gateway = "192.168.50.1";
+          DNS = [ "192.168.50.1" ];
+        };
+        linkConfig.RequiredForOnline = "routable";
+      };
+    };
+  };
+
   networking = {
     hostName = eris.name;
     networkmanager.enable = true;