I was hoping to download STM32CUBE IDE to be able to debug embedded software.

I now have "GNU Emacs" (?) , used some app to add "Magit" paxkage to the list and cannot process with installation because it is dependent on package xy which upon more clicking  it saiz - "it is build-in".

So I am stuck and really not sure "GNU Emacs" will do the job anyway - to many packages to painfully install.