diff --git a/cdk/img_1.png b/cdk/img_1.png
new file mode 100644
index 0000000..6e8bc28
Binary files /dev/null and b/cdk/img_1.png differ
diff --git a/cdk/make-qr.py b/cdk/make-qr.py
new file mode 100644
index 0000000..b4ea4c7
--- /dev/null
+++ b/cdk/make-qr.py
@@ -0,0 +1,10 @@
+import qrcode
+from qrcode.image.styledpil import StyledPilImage
+from qrcode.image.styles.moduledrawers import CircleModuleDrawer
+
+qr = qrcode.QRCode(error_correction=qrcode.constants.ERROR_CORRECT_L)
+qr.add_data('https://git.paco.to/nick/sciencefair2023')
+
+img_1 = qr.make_image(image_factory=StyledPilImage,         
+    module_drawer=CircleModuleDrawer())
+img_1.save("img_1.png")
diff --git a/cdk/sfec2/sci_stack.py b/cdk/sfec2/sci_stack.py
index 78f0c81..97b20c8 100644
--- a/cdk/sfec2/sci_stack.py
+++ b/cdk/sfec2/sci_stack.py
@@ -61,7 +61,7 @@ class VpcBasisStack(cdk.Stack):
             allow_all_outbound=True, security_group_name='Sci-sg' )
         self.SciSG.add_ingress_rule(peer=ec2.Peer.ipv4('173.79.190.162/32'),
             connection=ec2.Port.tcp(22), description="ssh in from home")
-        self.SciSG.add_ingress_rule(peer=ec2.Peer.ipv4('70.164.18.200/29'),
+        self.SciSG.add_ingress_rule(peer=ec2.Peer.ipv4('70.164.19.200/29'),
             connection=ec2.Port.tcp(22), description="ssh in from nova")
         self.SciSG.add_ingress_rule(peer=ec2.Peer.any_ipv6(),
             connection=ec2.Port.tcp(80), description="HTTP open to the world, ipv6")