XIAO ESP32C6 in PlatformIO

Hello! I have been working with PlatformIO and the ESP32 for several years.
I have now purchased the Seeed XIAO ESP32-C6 and would like to program it in PlatformIO as well.
When I try to compile the program, as described in the Wiki or here, I get the following error:

Executing task in folder Test_xiao_esp32_c6: C:\Users\Entwickler.platformio\penv\Scripts\platformio.exe run --environment seeed_xiao_esp32_c6

Processing seeed_xiao_esp32_c6 (platform: GitHub - pioarduino/platform-espressif32: Espressif 32: pioarduino community platform compatible with PlatformIO; board: seeed-xiao-esp32c6; framework: arduino)

UnknownBoard: Unknown board ID ‘seeed-xiao-esp32c6’

My platformio.ini is as follow:

[env:seeed_xiao_esp32_c6]
platform = GitHub - pioarduino/platform-espressif32: Espressif 32: pioarduino community platform compatible with PlatformIO
board = seeed-xiao-esp32c6
framework = arduino

Who can help?