Committing to open-source the code (and provide detailed instructions on how to run the code) in case the company shuts down is the most important. It could be

Committing to open-source the code (and provide detailed instructions on how to run the code) in case the company shuts down is the most important. It could be part of the service contract. I've read all parts of the Celest code which are public, and I can attest it's very well-written and easy to understand.