diff --git a/nnd-navi/main.go b/nnd-navi/main.go
new file mode 100644
index 0000000..05a7957
--- /dev/null
+++ b/nnd-navi/main.go
@@ -0,0 +1,82 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net"
+	"os"
+
+	"git.redxen.eu/nnd/s6-netdev"
+)
+
+func main() {
+	var (
+		err error
+		l   = log.New(os.Stderr, "s6-netdev: ", log.Ltime|log.Lshortfile|log.Lmsgprefix)
+		ifs = make(s6netdev.IfMap)
+	)
+	t := s6netdev.S6NewTree()
+
+	// Loopback
+	ifs.AddIf(&s6netdev.Iface{
+		Name: "lo",
+		Type: &s6netdev.NetdevIfTypes.Loopback,
+	})
+
+	// Physical interfaces
+	for _, v := range []int{2} {
+		ifs.AddIf(&s6netdev.Iface{
+			Name: fmt.Sprintf("enp%ds0f0", v),
+			Type: &s6netdev.NetdevIfTypes.Phys,
+		})
+	}
+
+	// Bridge interfaces
+	ifs.AddIf(&s6netdev.Iface{
+		Name:    "phys",
+		Type:    &s6netdev.NetdevIfTypes.Bridge,
+		MACAddr: net.HardwareAddr{0x38, 0xf3, 0xab, 0x84, 0x3d, 0xa4},
+		DHCP:    s6netdev.DHCP_IP{V4: true},
+		Properties: []s6netdev.Property{
+			{Key: "stp_state", Value: "0", Default: "0"},
+			{Key: "mcast_snooping", Value: "0", Default: "1"},
+		},
+		Sysctls: s6netdev.Sysctl_IP{
+			V6: []s6netdev.Property{
+				{Key: "forwarding", Value: "0", Default: "0"},
+			},
+		},
+	})
+
+	for _, m := range []struct {
+		Master string
+		Slaves []string
+	}{
+		{
+			Master: "phys",
+			Slaves: []string{
+				"enp2s0f0",
+			},
+		},
+	} {
+		master := ifs[m.Master]
+		for _, slave := range m.Slaves {
+			master.Slaves = append(master.Slaves, ifs[slave])
+		}
+		ifs[m.Master] = master
+	}
+
+	for _, v := range ifs {
+		t.Services(*v)
+	}
+
+	for _, v := range t.S6Services() {
+		if s6netdev.NetdevIsDummy(v.Name) {
+			continue
+		}
+		l.Printf("Commiting %s\n", v.Name)
+		if err = t.S6CommitService(v); err != nil {
+			l.Fatalf("Failed to commit %s, %s\n", v.Name, err)
+		}
+	}
+}