Yes, I have private repositories on GitHub with my SaaS products, and I add close friends as read-only contributors (usually to exchange ideas or show something

Yes, I have private repositories on GitHub with my SaaS products, and I add close friends as read-only contributors (usually to exchange ideas or show something I have done in the project). These friends are also coders tho. They don't have interests (neither do I at the moment) into became part of the business. I told them openly in case I died, they could open-source the project or take over the project. Passwords I keep with my wife / direct relatives so they can contact them to just take control of the project. However, open-sourcing would probably be enough for some of my customers to run the system by themselves. With the code and getting the access by contacting my relatives, these friends can potentially take the project and continue supporting my current customers.