[emptiestplace]

I'm a little lost, but it seems like you aren't - how does virtualization help with the actual work of splitting codebases into reusable components?

[transpute]

It doesn't help with doing any splitting (e.g. 20 years ago) but in current era where software is architected as micro-services and packaged for containers and VMs, software is more likely to be "born as reusable component".