try this

i-am-shodan · i-am-shodan · commit 879a8cdcea5e · 2025-12-23T01:12:23.000Z
diff --git a/platformio.ini b/platformio.ini
@@ -115,7 +115,9 @@ lib_deps =
 
 [core-pico]
 extends = core
-platform = https://github.com/maxgerhardt/platform-raspberrypi.git
+platform = raspberrypi
+platform_packages = 
+	maxgerhardt/framework-arduinopico@https://github.com/earlephilhower/arduino-pico.git
 board = pico
 board_build.core = earlephilhower
 build_flags = 
