stm32f091cc supported?

[gigawatts]

Is the stm32f091cct6 variant supported? I see the stm32f091RC and stm32f091RB are in the list.

[fpistm]

Hi,
STM32F091CC has been not declaredin the boards.txt but can be added easily as all generated file are available
https://github.com/stm32duino/Arduino_Core_STM32/tree/main/variants/STM32F0xx/F091C(B-C)(T-U)

You can follow the wiki to declare it:
https://github.com/stm32duino/wiki/wiki/Add-a-new-variant-%28board%29