How do I use the Snap Simulator - are there any instructions anywhere?

[javaspeak]

Are there any instructions anywhere on how we use the simulator shown here:

https://metamask.github.io/snaps/snaps-simulator/latest/#/handler/onRpcRequest

[Montoya]

It's meant to be used with Jest, and there is a guide for that here: https://docs.metamask.io/snaps/how-to/test-a-snap/ but please note that not all Snaps APIs are supported by the simulator.