At my current job I was tasked with making a new framework and transitioning our code over to it. The reason that we decided to actually work on technical debt

At my current job I was tasked with making a new framework and transitioning our code over to it. The reason that we decided to actually work on technical debt is because we are growing very rapidly and the old setup is too slow so the customers are actually affected. It was extremely useful to have every technical stakeholder in the design discussion to figure out what features we really need, where we went wrong with the old design, and how to transition properly without spending 10 months. So far so good, we are transitioning a bunch of our code over to the framework and it seems to be working well. Im sure mistakes will be made along the way, but planning with people who made the original mistakes (and subsequently have manned up to them) should help prevent remaking original mistakes.