Is this correct? Trying to get nRF24L01+ to work with T84
TIA
No, the original one was correct (unless you're using a core that has the pins numbered differently; if you do, I strongly recommend switching to one that isn't the odd-man-out with pin mapping). I thought you were asking what physical pins to connect to.
You know that you need to use a different SPI library for the tiny84/85 The t84 has a USI, not a normal SPI (the presence of real SPI is one of the motivations I had for making a core for the tiny841, see links in sig). So you need to use the appropriate library - there are SPI libraries for attiny's with a USI. I don't know what compatibility issues are involved though.
Or is that the library you're looking at? If so, that part is correct.