Sure, I'd be happy to. Converting apps from an old platform to a newer platform is reliable work, and I've done my share of it over my career. It often is structured as temporary projects, so I've had the opportunity to travel to short-term gigs in new cities while I build out platform conversion plans.

Sure, not everyone re-writes old apps. But enough companies do it to make it a decent professional specialty to cultivate. And it doesn't hurt knowing both the modern stacks and multiple generations of legacy stacks when working with large organizations. Sign me up.