I've managed to get a backup of the site working with ddev, imported the database etc and that's working well, but i can't figure out to give another ddev setup access to said database, surely this can be done?

As the subject says, I'd love to edit some theming colors to recreate an old site stuck at Drupal 7, the theme itself is Bootstrap Business and while this was part of the theme back in the day those options no longer exist in the current version for D11

What is the best/recommended way in 2026?