Specify staging platform URL. Couldve sworn this wasnt working

platformio.ini

@@ -10,7 +10,7 @@
 
 [common]
 framework = arduino
-platform = espressif8266_stage
+platform = https://github.com/platformio/platform-espressif8266.git#feature/stage 
 board_f_cpu = 160000000L
 lib_deps_builtin =
   SPI