It sounds like this is providing a sandboxed wasm runtime as a service is that right?
I think in this case the landing page is lacking in technical details to the point where it’s hard to understand what the product actually is. I like the general idea of firecracker as a service and sandboxed code as a service though.
Even the webhook example doesn’t really show where scriptable fits in, I think what you’re trying to say is that the customer can write some code to integrate the product with their slack and then the service will call the customer’s code in a sandboxed environment which is how the customer can extend the product right?