merge two Outlook web addins in @fluentui/react and @fluentui/react-components

Question

We have two different Outlook web addins, one written in @fluentui/react, the other in @fluentui/react-components, they also depends on different versions of other packages.

Now we are asked to merge the two under the same folder or project but with two separate manifest files.

I have a number of questions:

1. one option is we may try to rewrite the @fluentui/react one into @fluentui/react-components, so we may share the same package.json and package-lock.json. But somehow I can't find - is there a guide of how to rewrite / translate web addin from @fluentui/react into @fluentui/react-components ?
2. another option is, we keep the two web addins within their individual @fluentui/react and @fluentui/react-components, along with different package.json and package-lock.json. Is this doable? How to merge two web addins into one folder or project with separate manifest files, package.json and package-lock.json ?

Thanks,

William