Looks cool, but - is Bridge an open source project? Is it a company? All of the above? Do I have to pay for it? What are the prices?

As someone who makes architectural decisions on a regular basis, I need to know that if a company that we're a dependency on dies, we can rip it out and replace it with a) an open source version of what we were paying for or b) our own alternative implementation (which sounds like something on top of RabbitMQ in this case). It's frustrating to see companies like this positioning themselves in a way that makes them difficult to evaluate.