diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 8587b77..611bfe3 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -10,6 +10,7 @@
 	// "forwardPorts": [],
 	// Use 'postCreateCommand' to run commands after the container is created.
 	"postCreateCommand": "bash scripts/install-toolchain.sh",
+	"postAttachCommand": "bash scripts/chown-usb.sh",
 	// Configure tool-specific properties.
 	"customizations": {
 		"vscode": {
diff --git a/scripts/chown-usb.sh b/scripts/chown-usb.sh
new file mode 100755
index 0000000..08784af
--- /dev/null
+++ b/scripts/chown-usb.sh
@@ -0,0 +1,6 @@
+if [[ -c /dev/ttyUSB0 ]]; then
+    sudo chown root:$(id -gn $(whoami)) /dev/ttyUSB0
+fi
+if [[ -c /dev/ttyUSB1 ]]; then
+    sudo chown root:$(id -gn $(whoami)) /dev/ttyUSB1
+fi
diff --git a/scripts/install-toolchain.sh b/scripts/install-toolchain.sh
index fe1a10a..f4db467 100644
--- a/scripts/install-toolchain.sh
+++ b/scripts/install-toolchain.sh
@@ -1,7 +1,2 @@
 sudo apk add make cmake avrdude avr-libc gcc-avr
-if [[ -c /dev/ttyUSB0 ]]; then
-    sudo chown root:$(id -gn $(whoami)) /dev/ttyUSB0
-fi
-if [[ -c /dev/ttyUSB1 ]]; then
-    sudo chown root:$(id -gn $(whoami)) /dev/ttyUSB1
-fi
+