hello everyone, i need to make a project in next , which was initially made in react its role baser as well where we have 4 roles, now i am really confused how to revamp that project in next, if someone can help me as i am new to next and find it difficult to implement layout and routing in nextjs, if somone can share the githup repo of the project where i can take guidance for the boiler plate the previous project was made on mern now want to convert it into next