WIP target lo

custom debug stream

run docker with project dir, specify dir to makefile

remove unused includes

fix broken F1

app/app.cpp

@@ -1,12 +1,20 @@
-#include "Arduino.h"
+#include "flipper.h"
+#include <stdio.h>
+
+extern "C" {
+    FILE* get_debug();
+}
 
 extern "C" void app() {
-    printf("hello Flipper!\n");
+    FILE* debug_uart = get_debug();
+
+    fprintf(debug_uart, "hello Flipper!\n");
 
     GpioPin red_led = {LED_RED_GPIO_Port, LED_RED_Pin};
 
     app_gpio_init(red_led, GpioModeOutput);
 
+    
     while(1) {
         delay(100);
         app_gpio_write(red_led, true);