Hello, I like to work under PlatformIO for my DIY gadgets under ESP32.
I just bought an ESP32C3, the arduino espressif library is up to date (GitHub - espressif/arduino-esp32: Arduino core for the ESP32), but impossible to load it in PlatformIO (it works in the Arduino IDE).
I don’t know how to install this framework inside PlatformIO to use this microcontroller.
Thanks you for your help. FCH
There are now about 10 threads in this forum about the very same thing… Yes, PlatformIO is behind in the used Arduino-ESP32 version and has official support for it, as per Support for the latest Arduino v2.0 · Issue #619 · platformio/platform-espressif32 · GitHub.
There is a workaround with user-written modifications for the platform here.
[env:esp32dev]
board = esp32-c3-devkitm-1
framework = arduino
platform = https://github.com/tasmota/platform-espressif32/releases/download/v2.0.2.1/platform-tasmota-espressif32-2.0.2.1.zip
Thank you very much for your reactivity, everything works well 
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(Sorry I didn’t see the topic that dealt with the same question).