How to use custom arduino core

[umerm64]

I am using platformio for my project and I want to use a custom sdk (arduino core) for my project.
How do I specify the custom one in the platform.json file of platformio config?

I tried to update the platform.json file like this:

"framework": {
"arduino": {
"package": "framework-arduinoespressif32",
"script": "builder/frameworks/arduino.py",
"url": "https://github.com/myprofile/arduino-esp32.git"
},
but this doesnt download my custom sdk.

I need help in this regard please.

Thank you.

[Jason2866]

You can't use a git URL here. The URL has to point to a package (zip)