This is (currently) a single-user instance, because "be part of a community" models and unwritten rules stress out my neurology.
If I ever start accepting other users, the code of conduct would be something like this:
We want this to be a fun, pleasant, and harassment-free experience for everyone, regardless of gender, gender identity and expression, sexual orientation, disability, physical appearance, body size, race, or religion. We do not tolerate harassment of participants in any form.
Participants asked to stop any harassing behavior are expected to comply immediately. If someone asks you to leave them alone, leave them alone.