A guide demonstrating how to enable [the `explicitopen` experiment](https://docs.google.com/presentation/d/1yU2aik-glDrH21u-WbQ8iuWLQbh1FqPZOymXzHdbOD0/edit?slide=id.g3807e5e928a_1_8#slide=id.g3807e5e928a_1_8) and what effect it has on evaluations.