@xlc created a guide to dry run OpenGov referenda in Chopsticks. It is simple, but it assumes a bit higher technical level of competency than many OpenGov participants that need it have.
Jeeper and I simplified the language around it a bit and wrote a guide with step-by-step guide with images: Simulate OpenGov Referenda in Chopsticks
And a short video: https://www.youtube.com/watch?v=K6xccd1jJLw
Enjoy