Migrating Legacy App to Jumpstart?

Any tips / how-to's to move an existing Rail app to Jumpstart?

I particular I am thinking my existing schema.  The MCV should be a copy and paste (followed by lots of V changes and smaller MC changes).

FYI - it's going not bad.  My old mixture of JS, JQUERY and Coffee Script will be the painful part 😳

I am just going a model at a time - adding a migration for each table from the old schema then adding the models and controllers.  Some updates to account for Turbolinks which I didn't have before.

Tailwind make the UI dead easy vs the old legacy template I bought years ago.