STM32 few questions about this project

[mateczek]

I for test compile example project with success https://www.youtube.com/watch?v=1AP0Izbvrvc (i show step by step on windows msys2) But i have few questions
1 Is it possible to compile the library without specific board ???
2 Is it possible to compile only a library without an application. To link the library to a stm23f4 based project next time?
3 Is neccesery (SDCard) SDFatFS to complile library ??
Thank you very much for any suggestions and answers