So, before starting to learn with something else, I'll give it one last try. The avrdude is complaining that the device signature doesn't match. Whatever, I don't care. To me, what's written on it is what counts.
So I'd like to force it to upload the program. It promises to ignore the problem if
-F is specified.
Where are settings for avrdude parameters, like other IDEs have settings for their compilers?