[pacarvalho]

0. Use GIT.

1. Add a staging environment.

2. Add a CICD.

3. Add tests. Start by easy ones (new features) to get team used to writing them. Then important flows. If your team doesn’t have the bandwidth hire a contractor. Ex: https://avantsoft.com.br

4. Choose a part of the code the warrants being the first to refactor. Balance easiness with importance.

5. Define a better structure/architecture for it.

6. Refactor.

7. Repeat from 4 as many times as needed.

Also, consider micro-services on new features… may be an alternative to full rewrite.