Same Nios Code But Slightly Different FPGA

I am using a Terasic DE0 Nano with a EP4CE22F17C6 device. I use the GUI based tools for much of the work, but I am trying to transition to command line tools to automate the overall build process.

I have an FPGA design that has four slightly different variations. The Nios code sees the same hardware/software interface for them so the C code does not need to change. As of now, I am maintaining separate FPGA and C code bases for each of the FPGA variations so that the Eclipse tool does not pitch a fit about the wrong BSP being used for the software. Obviously, this is a bad solution and I would like to change it.

Here is my question -

Assuming I ensure that the C code is compatible across all four FPGA variations, can I just pick the desired FPGA HEX file when I generate the JIC file for a given FPGA variation?

Are there any subtleties I need to be aware of here?