diff --git a/Software/ChainLube/git_rev_macro.py b/Software/ChainLube/git_rev_macro.py
new file mode 100644
index 0000000..27728af
--- /dev/null
+++ b/Software/ChainLube/git_rev_macro.py
@@ -0,0 +1,8 @@
+import subprocess
+
+revision = (
+    subprocess.check_output(["git", "rev-parse", "--short=10", "HEAD"])
+    .strip()
+    .decode("utf-8")
+)
+print("-DGIT_REV='\"%s\"'" % revision)
\ No newline at end of file
diff --git a/Software/ChainLube/platformio.ini b/Software/ChainLube/platformio.ini
index 80ff1b8..e5e5e23 100644
--- a/Software/ChainLube/platformio.ini
+++ b/Software/ChainLube/platformio.ini
@@ -17,14 +17,17 @@ platform = espressif8266
 board = d1_mini
 framework = arduino
 
-
-;upload_port = 192.168.0.20
-;upload_protocol = espota
-;upload_flags =  
-;    --auth="chainlube"
-upload_protocol=esptool
+upload_port = 10.0.1.90
+upload_protocol = espota
+upload_flags =  
+    --auth = ${wifi_cred.admin_pass}
 
 build_flags =
+  !python git_rev_macro.py
+  -DWIFI_SSID=${wifi_cred.wifi_ssid}
+  -DWIFI_PASSWORD=${wifi_cred.wifi_password}
+  -DADMIN_PASS=${wifi_cred.admin_pass}
+
   ;-DDEBUG
   -fexceptions
 
diff --git a/Software/ChainLube/wifi_credentials.example.ini b/Software/ChainLube/wifi_credentials.example.ini
index 02982d7..4af929c 100644
--- a/Software/ChainLube/wifi_credentials.example.ini
+++ b/Software/ChainLube/wifi_credentials.example.ini
@@ -1,5 +1,4 @@
-[common]
-build_flags =
-  -DWIFI_SSID='"Wifi-SSID"'
-  -DWIFI_PASSWORD='"Wifi-Password"'
-  -DADMIN_PASS='"adminpass"'
\ No newline at end of file
+[wifi_cred]
+admin_pass = 'adminpass'
+wifi_ssid = 'wifi-ssid'
+wifi_password = 'wifi-pass'
\ No newline at end of file