diff --git a/README.md b/README.md
index 24a67ed..0467392 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,19 @@
 # syonad
 
-A simple but powerful orchestrator, designed to be easy to use and API-first.
\ No newline at end of file
+A simple but powerful orchestrator, designed to be easy to use and API-first.
+
+## deployer
+
+```
+curl 'https://git.g3e.fr/syonad/two/raw/branch/main/scripts/deploy.sh' -O
+bash deploy.sh
+mv deploy.sh /opt/two/bin/
+
+curl 'https://git.g3e.fr/syonad/two/raw/branch/main/systemd/agent.service' -o '/etc/systemd/system/agent.service'
+curl 'https://git.g3e.fr/syonad/two/raw/branch/main/systemd/dnsmasq@.service' -o '/etc/systemd/system/dnsmasq@.service'
+curl 'https://git.g3e.fr/syonad/two/raw/branch/main/systemd/metadata@.service' -o '/etc/systemd/system/metadata@.service'
+systemctl daemon-reload
+
+modprobe br_netfilter
+echo br_netfilter > /etc/modules-load.d/br_netfilter.conf
+```
diff --git a/internal/qemu/start_linux.go b/internal/qemu/start_linux.go
index a7869a2..181bb1d 100644
--- a/internal/qemu/start_linux.go
+++ b/internal/qemu/start_linux.go
@@ -53,14 +53,19 @@ func Start(cfg Config) error {
 	}
 
 	hasScsi := false
+	virtioBlk := 0
 	for _, d := range cfg.Disks {
 		if strings.HasPrefix(d.Dev, "sd") {
 			hasScsi = true
-			break
+		} else {
+			virtioBlk++
 		}
 	}
+	if virtioBlk > 1 {
+		return fmt.Errorf("qemu: %d disques virtio-blk (vd*) déclarés, un seul est supporté — utiliser des disques sd* pour les disques additionnels", virtioBlk)
+	}
 	if hasScsi {
-		args = append(args, "-device", "virtio-scsi-pci,id=scsi0")
+		args = append(args, "-device", "virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x1e")
 	}
 
 	sorted := make([]DiskConfig, len(cfg.Disks))
@@ -87,14 +92,14 @@ func Start(cfg Config) error {
 		} else {
 			args = append(args,
 				"-drive", fmt.Sprintf("file=%s,if=none,id=%s", d.Path, d.Dev),
-				"-device", fmt.Sprintf("virtio-blk-pci,drive=%s,bootindex=%d", d.Dev, bootindex),
+				"-device", fmt.Sprintf("virtio-blk-pci,drive=%s,bus=pci.0,addr=0x1f,bootindex=%d", d.Dev, bootindex),
 			)
 		}
 	}
 
 	args = append(args,
 		"-netdev", fmt.Sprintf("tap,id=net0,ifname=tap%d,script=no,downscript=no", cfg.TapID),
-		"-device", fmt.Sprintf("virtio-net-pci,netdev=net0,mac=%s", cfg.Mac),
+		"-device", fmt.Sprintf("virtio-net-pci,netdev=net0,mac=%s,bus=pci.0,addr=0x03", cfg.Mac),
 		"-daemonize",
 	)